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| purl | pkg:deb/debian/libxml2@2.9.10%2Bdfsg-6.7%2Bdeb11u4?distro=trixie |
| Next non-vulnerable version | 2.9.10+dfsg-6.7+deb11u5 |
| Latest non-vulnerable version | 2.15.2+dfsg-0.1 |
| Risk | 2.8 |
| Vulnerability | Summary | Fixed by |
|---|---|---|
|
VCID-62bb-e8vk-7uh4
Aliases: CVE-2026-0990 |
libxml2: libxml2: Denial of Service via uncontrolled recursion in XML catalog processing |
Affected by 0 other vulnerabilities. |
|
VCID-d1ar-1945-sygd
Aliases: CVE-2026-0992 |
libxml2: libxml2: Denial of Service via crafted XML catalogs |
Affected by 0 other vulnerabilities. |
|
VCID-knx8-5fpz-zbgn
Aliases: CVE-2026-0989 |
libxml2: Unbounded RelaxNG Include Recursion Leading to Stack Overflow |
Affected by 0 other vulnerabilities. |
|
VCID-nj3a-zqw9-6bga
Aliases: CVE-2026-1757 |
libxml2: Memory Leak Leading to Local Denial of Service in xmllint Interactive Shell |
Affected by 0 other vulnerabilities. |
| Vulnerability | Summary | Aliases |
|---|---|---|
| VCID-1d83-bsv8-ckhz | Multiple vulnerabilities in libxml2 might lead to execution of arbitrary code or Denial of Service. |
CVE-2008-3281
|
| VCID-27jd-t23h-73f4 | libxml2: Integer Overflow in xmlBuildQName() Leads to Stack Buffer Overflow in libxml2 |
CVE-2025-6021
|
| VCID-2b1g-gp84-87e8 | Improper Restriction of Operations within the Bounds of a Memory Buffer Heap-based buffer overflow in the xmlGROW function in parser.c in libxml2 allows context-dependent attackers to obtain sensitive process memory information via unspecified vectors. |
CVE-2015-7499
GHSA-jxjr-5h69-qw3w |
| VCID-2j62-5rjn-vyeu | Uncontrolled Resource Consumption dict.c in libxml2 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via an unexpected character immediately after the "<!DOCTYPE html" substring in a crafted HTML document. |
CVE-2015-8806
GHSA-7hp2-xwpj-95jq |
| VCID-2r5u-7wpy-4yf9 | Improper Restriction of Operations within the Bounds of a Memory Buffer libxml2 allows context-dependent attackers to cause a denial of service (CPU and memory consumption) via an XML file containing an entity declaration with long replacement text and many references to this entity, aka "internal entity expansion" with linear complexity. |
CVE-2013-0338
|
| VCID-31w8-13b6-8beh | libxml2: Stack-based buffer overflow in xmlSnprintfElements of libxml2 |
CVE-2025-24928
|
| VCID-33n1-125n-63h6 | Improper Restriction of Operations within the Bounds of a Memory Buffer The xmlParseMisc function in parser.c in libxml2 allows context-dependent attackers to cause a denial of service (out-of-bounds heap read) via unspecified vectors related to incorrect entities boundaries and start tags. |
CVE-2015-7500
|
| VCID-3d1e-enaq-q3cx | Improper Restriction of Operations within the Bounds of a Memory Buffer Heap-based buffer overflow in the xmlDictComputeFastQKey function in dict.c in libxml2 allows context-dependent attackers to cause a denial of service via unspecified vectors. |
CVE-2015-7497
|
| VCID-3s4n-twju-b3dw | Uncontrolled Resource Consumption The xz_decomp function in xzlib.c in libxml2 does not properly detect compression errors, which allows context-dependent attackers to cause a denial of service (process hang) via crafted XML data. |
CVE-2015-8035
|
| VCID-3whx-6t3e-7beq | Multiple vulnerabilities have been found in libxml2, the worst of which could result in the execution of arbitrary code. |
CVE-2017-5969
|
| VCID-464a-typa-7qbu | libxml2: Stack Buffer Overflow in xmllint Interactive Shell Command Handling |
CVE-2025-6170
|
| VCID-4gyr-nwyy-qfeq | Improper Restriction of Operations within the Bounds of a Memory Buffer It was found that Red Hat JBoss Core Services erratum RHSA-2016:2957 for CVE-2016-3705 did not actually include the fix for the issue found in libxml2, making it vulnerable to a Denial of Service attack due to a Stack Overflow. This is a regression CVE for the same issue as CVE-2016-3705. |
CVE-2016-9597
|
| VCID-4hws-gtxr-3bge | Improper Restriction of Operations within the Bounds of a Memory Buffer Buffer overflow in libxml2 allows remote attackers to execute arbitrary code by leveraging an incorrect limit for port values when handling redirects. |
CVE-2017-7376
|
| VCID-4m3j-qy8c-4uhk | NULL Pointer Dereference allows attackers to cause a denial of service (or application crash). This only applies when lxml is used together with libxml2 2.9.10 through 2.9.14. libxml2 2.9.9 and earlier are not affected. It allows triggering crashes through forged input data, given a vulnerable code sequence in the application. The vulnerability is caused by the iterwalk function (also used by the canonicalize function). Such code shouldn't be in wide-spread use, given that parsing + iterwalk would usually be replaced with the more efficient iterparse function. However, an XML converter that serialises to C14N would also be vulnerable, for example, and there are legitimate use cases for this code sequence. If untrusted input is received (also remotely) and processed via iterwalk function, a crash can be triggered. |
CVE-2022-2309
GHSA-wrxv-2j5q-m38w PYSEC-2022-230 |
| VCID-51f2-w9b7-9fb4 | Improper Restriction of Operations within the Bounds of a Memory Buffer Heap-based buffer overflow in the xmlFAParsePosCharGroup function in libxml2, as used in Apple iOS, OS X, tvOS, and watchOS, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted XML document. |
CVE-2016-1840
|
| VCID-57yv-ay7b-v7ev | Out-of-bounds Write An integer overflow in xmlmemory.c in libxml2, as used in Google Chrome and other products, allowed a remote attacker to potentially exploit heap corruption via a crafted XML file. |
CVE-2017-5130
|
| VCID-5j6d-yzbn-h3ha | Multiple vulnerabilities in libxml2 might lead to execution of arbitrary code or Denial of Service. |
CVE-2008-4226
|
| VCID-69ff-ngna-mkbv | Uncontrolled Resource Consumption parser.c in libxml2 does not properly prevent entity expansion even when entity substitution has been disabled, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted XML document containing a large number of nested entity references, a variant of the "billion laughs" attack. |
CVE-2014-3660
|
| VCID-6h9f-6pmg-3fh3 | Improper Restriction of Operations within the Bounds of a Memory Buffer libxml2 does not properly stop parsing invalid input, which allows context-dependent attackers to cause a denial of service (out-of-bounds read and libxml2 crash) via crafted XML data to the (1) xmlParseEntityDecl or (2) xmlParseConditionalSections function in parser.c, as demonstrated by non-terminated entities. |
CVE-2015-7941
|
| VCID-74y5-vcxn-2ygr | libxml: Heap use after free (UAF) leads to Denial of service (DoS) |
CVE-2025-49794
|
| VCID-782a-uast-nbch | Multiple vulnerabilities have been found in libxml2, the worst of which could result in a Denial of Service condition. |
CVE-2019-20388
|
| VCID-7bpp-2hvk-2udv | Multiple vulnerabilities have been found in libxml2, the worst of which could result in a Denial of Service condition. |
CVE-2020-24977
|
| VCID-7f2n-978e-dkh5 | A off-by-one error in libxml2 could result in execution of arbitrary code or Denial of Service. |
CVE-2011-3102
|
| VCID-7h3p-7ej2-17f1 | Out-of-bounds Read The xmlDictAddString function in libxml2, as used in Apple iOS, OS X, tvOS, and watchOS, allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted XML document. |
CVE-2016-1839
|
| VCID-7rzw-9jj5-4ybk | Improper Restriction of Operations within the Bounds of a Memory Buffer The xmlNextChar function in libxml2 does not properly check the state, which allows context-dependent attackers to cause a denial of service (heap-based buffer over-read and application crash) or obtain sensitive information via crafted XML data. |
CVE-2015-8241
|
| VCID-86mu-krba-a3e9 | (64-bit): Multiple integer overflows, leading to DoS or possibly other unspecified impact |
CVE-2012-2807
|
| VCID-8d2w-3c3p-zqaz | libxml2: buffer over-read in xmlHTMLPrintFileContext in xmllint.c |
CVE-2024-34459
|
| VCID-8pmj-m5vu-4uc2 | Multiple vulnerabilities were found in libxml2 which could lead to execution of arbitrary code or a Denial of Service. |
CVE-2011-2821
|
| VCID-8pzj-mq5r-rqcq | Loop with Unreachable Exit Condition ('Infinite Loop') The xz_decomp function in xzlib.c in libxml2, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035. |
CVE-2018-9251
|
| VCID-8tej-h12t-2fag | Improper Restriction of XML External Entity Reference A flaw in libxml2 allows remote XML entity inclusion with default parser flags (i.e., when the caller did not request entity substitution, DTD validation, external DTD subset loading, or default DTD attributes). Depending on the context, this may expose a higher-risk attack surface in libxml2 not usually reachable with default parser flags, and expose content from local files, HTTP, or FTP servers (which might be otherwise unreachable). |
CVE-2017-7375
|
| VCID-9hqf-12yh-bkc8 | Multiple vulnerabilities have been found in libxml2, the worst of which could result in a Denial of Service condition. |
CVE-2021-3518
GHSA-v4f8-2847-rwm7 |
| VCID-9p2f-ynzb-r3gj | Vulnerabilities in libxml2 Several vulnerabilities were discovered in the libxml2 library that this package gem depends on. |
CVE-2015-5312
GHSA-xjqg-9jvg-fgx2 |
| VCID-9q49-2srz-rkg7 | Use After Free Use-after-free vulnerability in libxml2, as used in Google Chrome, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the XPointer range-to function. |
CVE-2016-5131
|
| VCID-a28u-yu15-3qa6 | Use After Free Multiple use-after-free vulnerabilities in libxml2 and possibly other versions might allow context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to the (1) htmlParseChunk and (2) xmldecl_done functions, as demonstrated by a buffer overflow in the xmlBufGetInputBase function. |
CVE-2013-1969
|
| VCID-aasn-u7fd-8bhy | Improper Restriction of Operations within the Bounds of a Memory Buffer Xmlsoft Libxml2 v2.11.0 was discovered to contain a global buffer overflow via the xmlSAX2StartElement() function at /libxml2/SAX2.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted XML file. |
CVE-2023-39615
|
| VCID-ah8e-sxuu-jqcw | Improper Restriction of Operations within the Bounds of a Memory Buffer The xmlParseXMLDecl function in parser.c in libxml2 allows context-dependent attackers to obtain sensitive information via an (1) unterminated encoding value or (2) incomplete XML declaration in XML data, which triggers an out-of-bounds heap read. |
CVE-2015-8317
|
| VCID-ahha-vnq4-7qd2 | libxslt: libxml2: Inifinite recursion at exsltDynMapFunction function in libexslt/dynamic.c |
CVE-2025-9714
|
| VCID-axc8-mw7j-7ufg | Double Free Double free vulnerability in libxml2 and other versions, as used in Google Chrome and other products, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to XPath handling. |
CVE-2010-4494
|
| VCID-ayqh-mrmn-tqgg | libxml2: Off-by-one error leading to heap-based buffer overflow in encoding |
CVE-2011-0216
|
| VCID-azzy-m5pc-qudn | Loop with Unreachable Exit Condition ('Infinite Loop') parser.c in libxml2 does not prevent infinite recursion in parameter entities. |
CVE-2017-16932
GHSA-x2fm-93ww-ggvx |
| VCID-b4bz-7ttk-d3ae | Multiple Denial of Services vulnerabilities were found in libxml2. |
CVE-2009-2416
|
| VCID-b5tz-9s1v-pkg7 | Vulnerabilities in libxml2 and libxslt Several vulnerabilities were discovered in the libxml2 and libxslt libraries that this package gem depends on. |
CVE-2015-1819
GHSA-q7wx-62r7-j2x7 |
| VCID-b828-btkm-tufv | Uncontrolled Resource Consumption libxml2, as used in Red Hat JBoss Core Services and when in recovery mode, allows context-dependent attackers to cause a denial of service (stack consumption) via a crafted XML document. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-3627. |
CVE-2016-9596
|
| VCID-bejh-22y7-kuh6 | NULL Pointer Dereference A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application. |
CVE-2018-14404
GHSA-6qvp-r6r3-9p7h |
| VCID-bk98-bfkg-7bdt | Use After Free Use-after-free vulnerability in the xmlDictComputeFastKey function in libxml2, as used in Apple iOS, OS X, tvOS, and watchOS, allows remote attackers to cause a denial of service via a crafted XML document. |
CVE-2016-1836
|
| VCID-bmv8-f7rb-43dc | libxml2: XXE vulnerability |
CVE-2024-40896
|
| VCID-bp8r-8jjt-hygw | Improper Input Validation The (1) xmlParserEntityCheck and (2) xmlParseAttValueComplex functions in parser.c in libxml2 do not properly keep track of the recursion depth, which allows context-dependent attackers to cause a denial of service (stack consumption and application crash) via a crafted XML document containing a large number of nested entity references. |
CVE-2016-3705
|
| VCID-bz1e-1ypb-kkgg | libxml: Type confusion leads to Denial of service (DoS) |
CVE-2025-49796
|
| VCID-c9ds-faa9-t7be | libxml2: Use-After-Free in libxml2 |
CVE-2024-56171
|
| VCID-cbm2-cez4-bqgh | Use After Free `valid.c` in libxml2 before 2.9.13 has a use-after-free of `ID` and `IDREF` attributes. |
CVE-2022-23308
|
| VCID-cgfv-pps6-6khd | Improper Restriction of Operations within the Bounds of a Memory Buffer The htmlParseComment function in HTMLparser.c in libxml2 allows attackers to obtain sensitive information, cause a denial of service (out-of-bounds heap memory access and application crash), or possibly have unspecified other impact via an unclosed HTML comment. |
CVE-2015-8710
|
| VCID-d68t-f8j1-h3am | Use After Free When using the XML Reader interface with DTD validation and XInclude expansion enabled, processing crafted XML documents can lead to an xmlValidatePopElement use-after-free. |
CVE-2024-25062
|
| VCID-drf1-ktzv-a3dk | libxml2: Libxml2 out of bounds read |
CVE-2025-26434
|
| VCID-drkd-yykc-ayge | libxml2: Out-of-Bounds Read in libxml2 |
CVE-2025-32414
|
| VCID-dzxg-zych-1yd1 | libxml2 out of bounds read |
CVE-2011-3905
|
| VCID-e9c3-5gws-u3fp | Use After Free Multiple use-after-free vulnerabilities in the (1) htmlPArsePubidLiteral and (2) htmlParseSystemiteral functions in libxml2, as used in Apple iOS, OS X, tvOS, and watchOS, allow remote attackers to cause a denial of service via a crafted XML document. |
CVE-2016-1837
|
| VCID-eb6k-ppfd-m7a3 | Multiple vulnerabilities have been found in libxml2, the worst of which could result in arbitrary code execution. |
CVE-2022-40304
|
| VCID-ecde-c15q-ukh1 | Improper Restriction of Operations within the Bounds of a Memory Buffer xpointer.c in libxml2 (as used in Apple iOS, OS X, tvOS, and watchOS before 3, and other products) does not forbid namespace nodes in XPointer ranges, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and memory corruption) via a crafted XML document. |
CVE-2016-4658
GHSA-fr52-4hqw-p27f |
| VCID-eebz-xjem-cygz | Improper Restriction of Operations within the Bounds of a Memory Buffer Heap-based buffer overflow in the xmlStrncat function in libxml2, as used in Apple iOS, OS X, tvOS, and watchOS, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted XML document. |
CVE-2016-1834
|
| VCID-ek5d-m9pn-3fec | Multiple vulnerabilities have been found in libxml2, the worst of which could result in a Denial of Service condition. |
CVE-2021-3517
GHSA-jw9f-hh49-cvp9 |
| VCID-eqva-5dwq-d7cw | libxml: Null pointer dereference leads to Denial of service (DoS) |
CVE-2025-49795
|
| VCID-f42v-7nvu-v7cw | libxml2 long URL causes SEGV |
CVE-2004-0110
|
| VCID-frd7-r2rj-s7c7 | Multiple vulnerabilities in libxml2 might lead to execution of arbitrary code or Denial of Service. |
CVE-2008-3529
|
| VCID-gc1r-nauj-1fge | Out-of-bounds Read libxml2, as used in Red Hat JBoss Core Services, allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted XML document. NOTE: this vulnerability exists because of a missing fix for CVE-2016-4483. |
CVE-2016-9598
|
| VCID-ghaf-ynsg-uuea | Improper Restriction of Operations within the Bounds of a Memory Buffer The xmlSAX2TextNode function in SAX2.c in the push interface in the HTML parser in libxml2 allows context-dependent attackers to cause a denial of service (stack-based buffer over-read and application crash) or obtain sensitive information via crafted XML data. |
CVE-2015-8242
|
| VCID-gvmn-4dtv-8qcj | Improper Restriction of Operations within the Bounds of a Memory Buffer parser.c in libxml2 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a '%' character in a DTD name. |
CVE-2017-16931
|
| VCID-gxsm-qvkt-gygy | Improper Restriction of Operations within the Bounds of a Memory Buffer Heap-based buffer overflow in the xmlParseXmlDecl function in parser.c in libxml2 allows context-dependent attackers to cause a denial of service via unspecified vectors related to extracting errors after an encoding conversion failure. |
CVE-2015-7498
|
| VCID-h6qs-dgys-afes | Improper Restriction of Operations within the Bounds of a Memory Buffer Heap-based buffer underflow in the xmlParseAttValueComplex function in parser.c in libxml2, as used in Google Chrome and other products, allows remote attackers to cause a denial of service or possibly execute arbitrary code via crafted entities in an XML document. |
CVE-2012-5134
|
| VCID-hafa-bcpu-8uaj | libxml2: NULL Pointer Dereference in libxml2 xmlPatMatch |
CVE-2025-27113
|
| VCID-hz3p-4d8c-z7gm | Improper Restriction of Operations within the Bounds of a Memory Buffer libxml2, as used in Google Chrome, Apple Safari, and other products, reads from invalid memory locations during processing of malformed XPath expressions, which allows context-dependent attackers to cause a denial of service (application crash) via a crafted XML document. |
CVE-2010-4008
|
| VCID-js7v-8a5j-h7ba | Multiple vulnerabilities have been reported in Chromium and V8, some of which may allow execution of arbitrary code and local root privilege escalation. |
CVE-2011-2834
|
| VCID-ked7-5tjg-nudx | Improper Restriction of Operations within the Bounds of a Memory Buffer The xmlNextChar function in libxml2 allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted XML document. |
CVE-2016-1762
|
| VCID-mhwv-kcxp-buc7 | A vulnerability in libxml2 allows a remote attacker to cause Denial of Service. |
CVE-2014-0191
|
| VCID-mm88-amve-quh6 | Out-of-bounds Read The htmlParseTryOrFinish function in HTMLparser.c in libxml2 allows attackers to cause a denial of service (buffer over-read) or information disclosure. |
CVE-2017-8872
|
| VCID-mvjk-gp4c-f7h8 | Multiple vulnerabilities in libxml2 might lead to execution of arbitrary code or Denial of Service. |
CVE-2008-4225
|
| VCID-netm-9gxh-3yh4 | Use of Externally-Controlled Format String Format string vulnerability in libxml2 allows attackers to have unspecified impact via format string specifiers in unknown vectors. |
CVE-2016-4448
|
| VCID-nrut-syek-s7fg | Improper Restriction of Operations within the Bounds of a Memory Buffer parser.c in libxml2, as used in Google Chrome and other products, allows remote attackers to cause a denial of service (out-of-bounds read) via a document that ends abruptly, related to the lack of certain checks for the XML_PARSER_EOF state. |
CVE-2013-2877
|
| VCID-nuev-71ra-ffcc | libxml2 various overflows |
CVE-2004-0989
|
| VCID-nuh8-qd25-ykan | libxml2: Incorrect server side include parsing can lead to XSS |
CVE-2016-3709
|
| VCID-pdv9-xrh8-d3fz | Use After Free This advisory has been marked as False Positive and removed. |
CVE-2023-45322
|
| VCID-qh44-gavt-rbdw | libxml: use-after-free in xmlXIncludeAddNode |
CVE-2022-49043
|
| VCID-qp6y-dt1j-97df | libxml2: Out-of-bounds Read in xmlSchemaIDCFillNodeTables |
CVE-2025-32415
|
| VCID-qpnt-xvgv-s3cq | This advisory has been invalidated. |
CVE-2023-28484
|
| VCID-qqte-z1e6-xuh7 | Improper Restriction of Operations within the Bounds of a Memory Buffer A buffer overflow was discovered in libxml2 . The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. The variable len is assigned strlen(buf). If the content->type is XML_ELEMENT_CONTENT_ELEMENT, then (i) the content->prefix is appended to buf (if it actually fits) whereupon (ii) content->name is written to the buffer. However, the check for whether the content->name actually fits also uses 'len' rather than the updated buffer length strlen(buf). This allows us to write about "size" many bytes beyond the allocated memory. This vulnerability causes programs that use libxml2, such as PHP, to crash. |
CVE-2017-9047
|
| VCID-qtp3-a1g7-8kgw | Improper Restriction of XML External Entity Reference libxml2, as used in XMLSec and other products, does not offer a flag directly indicating that the current document may be read but other files may not be opened, which makes it easier for remote attackers to conduct XML External Entity (XXE) attacks via a crafted document. |
CVE-2016-9318
|
| VCID-qv3r-ppuc-zycz | libxml as used in Nokogiri has an infinite loop in a certain end-of-file situation xmlStringLenDecodeEntities in parser.c in libxml2 2.9.10 has an infinite loop in a certain end-of-file situation. The Nokogiri RubyGem has patched its vendored copy of libxml2 in order to prevent this issue from affecting nokogiri. |
CVE-2020-7595
GHSA-7553-jr98-vx47 |
| VCID-qxwq-xwaw-nyak | Multiple vulnerabilities have been found in libxml2, the worst of which could result in the execution of arbitrary code. |
CVE-2017-0663
|
| VCID-r7q9-7u4b-83cz | Out-of-bounds Read The htmlCurrentChar function in libxml2, as used in Apple iOS, OS X, tvOS, and watchOS, allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted XML document. |
CVE-2016-1833
|
| VCID-rbdy-dm61-jkdw | Multiple vulnerabilities in libxml2 might lead to execution of arbitrary code or Denial of Service. |
CVE-2008-4409
|
| VCID-rhgj-t5cp-wkbh | Improper Restriction of Operations within the Bounds of a Memory Buffer libxml2 is vulnerable to a stack-based buffer overflow. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. At the end of the routine, the function may strcat two more characters without checking whether the current strlen(buf) + 2 < size. This vulnerability causes programs that use libxml2, such as PHP, to crash. |
CVE-2017-9048
|
| VCID-rsvx-3f49-v3an | Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion) A flaw was found in libxml2. By exploiting an exponential entity expansion attack its possible bypassing all existing protection mechanisms and lead to a denial of service. |
CVE-2021-3541
|
| VCID-s3j9-1zq5-zkf5 | Deserialization of Untrusted Data The xmlBufAttrSerializeTxtContent function in xmlsave.c in libxml2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a non-UTF-8 attribute value, related to serialization. NOTE: this vulnerability may be a duplicate of CVE-2016-3627. |
CVE-2016-4483
|
| VCID-s9r4-a3uz-4yhp | Integer Overflow or Wraparound In libxml2 before 2.9.14, several buffer handling functions in buf.c (xmlBuf*) and tree.c (xmlBuffer*) don't check for integer overflows. This can result in out-of-bounds memory writes. Exploitation requires a victim to open a crafted, multi-gigabyte XML file. Other software using libxml2's buffer functions, for example libxslt through 1.1.35, is affected as well. |
CVE-2022-29824
|
| VCID-t53m-6vvr-27cf | Loop with Unreachable Exit Condition ('Infinite Loop') libxml2, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035 and CVE-2018-9251. |
CVE-2018-14567
|
| VCID-t9pa-yw9s-kqb9 | Improper Input Validation XML external entity (XXE) vulnerability in the xmlStringLenDecodeEntities function in parser.c in libxml2, when not in validating mode, allows context-dependent attackers to read arbitrary files or cause a denial of service (resource consumption) via unspecified vectors. |
CVE-2016-4449
|
| VCID-tazr-2qgq-77fy | Improper Restriction of Operations within the Bounds of a Memory Buffer The xmlParseElementDecl function in parser.c in libxml2 allows context-dependent attackers to cause a denial of service (heap-based buffer underread and application crash) via a crafted file, involving xmlParseName. |
CVE-2016-4447
|
| VCID-tn87-vke6-kuf6 | Use After Free Use after free in libxml2, as used in Google Chrome and other products, allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. |
CVE-2017-15412
GHSA-r58r-74gx-6wx3 |
| VCID-ttud-e3xr-dudd | Integer Overflow Integer overflow in xpath.c in libxml2, and libxml, allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted XML file that triggers a heap-based buffer overflow when adding a new namespace node, related to handling of XPath expressions. |
CVE-2011-1944
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| VCID-tyk2-gq2c-bbcn | Improper Restriction of Operations within the Bounds of a Memory Buffer The htmlParseNameComplex function in HTMLparser.c in libxml2 allows attackers to cause a denial of service (out-of-bounds read) via a crafted XML document. |
CVE-2016-2073
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| VCID-udew-3gre-13hy | Multiple vulnerabilities have been found in libxml2, the worst of which could result in arbitrary code execution. |
CVE-2022-40303
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| VCID-ugyh-dycm-3bc3 | libxml2: memory leak in xmlParseBalancedChunkMemoryRecover in parser.c |
CVE-2019-19956
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| VCID-vcq9-93xd-nfbe | Out-of-bounds Read The xmlPArserPrintFileContextInternal function in libxml2, as used in Apple iOS, OS X, tvOS, and watchOS, allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted XML document. |
CVE-2016-1838
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| VCID-vf7b-s3y3-sfhw | Multiple vulnerabilities have been found in libxml2, the worst of which could result in a Denial of Service condition. |
CVE-2021-3537
GHSA-286v-pcf5-25rc |
| VCID-wc4g-sxyq-ubcd | Allocation of Resources Without Limits or Throttling The xz_head function in xzlib.c in libxml2 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file. |
CVE-2017-18258
GHSA-882p-jqgm-f45g |
| VCID-wj66-7n6c-9kam | security update |
CVE-2016-1835
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| VCID-wtxh-xxp2-d3hr | Improper Restriction of Operations within the Bounds of a Memory Buffer The xmlParseConditionalSections function in parser.c in libxml2 does not properly skip intermediary entities when it stops parsing invalid input, which allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted XML data, a different vulnerability than CVE-2015-7941. |
CVE-2015-7942
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| VCID-wy5v-dsp3-a7aa | Improper Input Validation The xmlStringGetNodeList function in tree.c in libxml2, when used in recovery mode, allows context-dependent attackers to cause a denial of service (infinite recursion, stack consumption, and application crash) via a crafted XML document. |
CVE-2016-3627
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| VCID-x9ej-7dcq-tub2 | Double Free An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. This behavior occurs because there is an attempt to use the first byte of an empty string, and any value is possible (not solely the '\0' value). |
CVE-2023-29469
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| VCID-xps8-1a3r-wke6 | Multiple vulnerabilities have been found in libxml2, the worst of which could result in a Denial of Service condition. |
CVE-2021-3516
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| VCID-xzhu-mq3f-3bd1 | A Denial of Service vulnerability has been reported in libxml2. |
CVE-2007-6284
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| VCID-yj1q-xst4-y7eb | Uncontrolled Resource Consumption libxml2 does not properly handle external entities expansion unless an application developer uses the xmlSAX2ResolveEntity or xmlSetExternalEntityLoader function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. |
CVE-2013-0339
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| VCID-ymhr-ads4-qqdp | Out-of-bounds Read libxml2 is vulnerable to a heap-based buffer over-read in the xmlDictComputeFastKey function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. |
CVE-2017-9049
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| VCID-yytk-k1y3-p3hp | Uncontrolled Resource Consumption libxml2 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted XML data. |
CVE-2012-0841
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| VCID-z8ds-n38f-2uby | A boundary error in libxml2 could result in execution of arbitrary code or Denial of Service. |
CVE-2011-3919
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| VCID-zm21-2pqq-3ker | Out-of-bounds Read libxml2 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839. |
CVE-2017-9050
GHSA-8c56-cpmw-89x7 |
| VCID-zz7k-hf7j-qff5 | Multiple Denial of Services vulnerabilities were found in libxml2. |
CVE-2009-2414
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