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| purl | pkg:gem/nokogiri@1.13.5 |
| Vulnerability | Summary | Fixed by |
|---|---|---|
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VCID-365e-j8ta-h7cn
Aliases: GHSA-xc9x-jj77-9p9j GMS-2024-127 |
Nokogiri update packaged libxml2 to v2.12.5 to resolve CVE-2024-25062 ## Summary Nokogiri upgrades its dependency libxml2 as follows: - Nokogiri v1.15.6 upgrades libxml2 to [2.11.7](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.11.7) from 2.11.6 - Nokogiri v1.16.2 upgrades libxml2 to [2.12.5](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.12.5) from 2.12.4 libxml2 v2.11.7 and v2.12.5 address the following vulnerability: - CVE-2024-25062 / https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-25062 - described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/604 - patched by https://gitlab.gnome.org/GNOME/libxml2/-/commit/92721970 Please note that this advisory only applies to the CRuby implementation of Nokogiri, and only if the _packaged_ libraries are being used. If you've overridden defaults at installation time to use _system_ libraries instead of packaged libraries, you should instead pay attention to your distro's `libxml2` release announcements. JRuby users are not affected. ## Mitigation Upgrade to Nokogiri `~> 1.15.6` or `>= 1.16.2`. Users who are unable to upgrade Nokogiri may also choose a more complicated mitigation: compile and link Nokogiri against patched external libxml2 libraries which will also address these same issues. ## Impact From the CVE description, this issue applies to the `xmlTextReader` module (which underlies `Nokogiri::XML::Reader`): > 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. ## Timeline - 2024-02-04 10:35 EST - this GHSA is drafted without complete details about when the upstream issue was introduced; a request is made of libxml2 maintainers for more detailed information - 2024-02-04 10:48 EST - updated GHSA to reflect libxml2 maintainers' confirmation of affected versions - 2024-02-04 11:54 EST - v1.16.2 published, this GHSA made public - 2024-02-05 10:18 EST - updated with MITRE link to the CVE information, and updated "Impact" section - 2024-03-16 09:03 EDT - v1.15.6 published (see discussion at https://github.com/sparklemotion/nokogiri/discussions/3146), updated mitigation information - 2024-03-18 22:12 EDT - update "affected products" range with v1.15.6 information |
Affected by 8 other vulnerabilities. Affected by 9 other vulnerabilities. Affected by 8 other vulnerabilities. |
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VCID-43qu-922g-myca
Aliases: GHSA-2qc6-mcvw-92cw GMS-2022-5550 |
Update bundled libxml2 to v2.10.3 to resolve multiple CVEs ### Summary Nokogiri v1.13.9 upgrades the packaged version of its dependency libxml2 to [v2.10.3](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.10.3) from v2.9.14. libxml2 v2.10.3 addresses the following known vulnerabilities: - [CVE-2022-2309](https://nvd.nist.gov/vuln/detail/CVE-2022-2309) - [CVE-2022-40304](https://nvd.nist.gov/vuln/detail/CVE-2022-40304) - [CVE-2022-40303](https://nvd.nist.gov/vuln/detail/CVE-2022-40303) Please note that this advisory only applies to the CRuby implementation of Nokogiri `< 1.13.9`, and only if the _packaged_ libraries are being used. If you've overridden defaults at installation time to use _system_ libraries instead of packaged libraries, you should instead pay attention to your distro's `libxml2` release announcements. ### Mitigation Upgrade to Nokogiri `>= 1.13.9`. Users who are unable to upgrade Nokogiri may also choose a more complicated mitigation: compile and link Nokogiri against external libraries libxml2 `>= 2.10.3` which will also address these same issues. ### Impact #### libxml2 [CVE-2022-2309](https://nvd.nist.gov/vuln/detail/CVE-2022-2309) - **CVSS3 score**: Under evaluation - **Type**: Denial of service - **Description**: 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. Nokogiri maintainers investigated at #2620 and determined this CVE does not affect Nokogiri users. #### libxml2 [CVE-2022-40304](https://nvd.nist.gov/vuln/detail/CVE-2022-40304) - **CVSS3 score**: Unspecified upstream - **Type**: Data corruption, denial of service - **Description**: When an entity reference cycle is detected, the entity content is cleared by setting its first byte to zero. But the entity content might be allocated from a dict. In this case, the dict entry becomes corrupted leading to all kinds of logic errors, including memory errors like double-frees. See https://gitlab.gnome.org/GNOME/libxml2/-/commit/644a89e080bced793295f61f18aac8cfad6bece2 #### libxml2 [CVE-2022-40303](https://nvd.nist.gov/vuln/detail/CVE-2022-40303) - **CVSS3 score**: Unspecified upstream - **Type**: Integer overflow - **Description**: Integer overflows with XML_PARSE_HUGE See https://gitlab.gnome.org/GNOME/libxml2/-/commit/c846986356fc149915a74972bf198abc266bc2c0 ### References - [libxml2 release notes](https://gitlab.gnome.org/GNOME/libxml2/-/releases) - [CVE-2022-2309](https://nvd.nist.gov/vuln/detail/CVE-2022-2309) - [CVE-2022-40304](https://nvd.nist.gov/vuln/detail/CVE-2022-40304) - [CVE-2022-40303](https://nvd.nist.gov/vuln/detail/CVE-2022-40303) |
Affected by 12 other vulnerabilities. |
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VCID-6r5w-pgkx-v3cb
Aliases: GHSA-353f-x4gh-cqq8 |
Nokogiri patches vendored libxml2 to resolve multiple CVEs ## Summary Nokogiri v1.18.9 patches the vendored libxml2 to address CVE-2025-6021, CVE-2025-6170, CVE-2025-49794, CVE-2025-49795, and CVE-2025-49796. ## Impact and severity ### CVE-2025-6021 A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input. NVD claims a severity of 7.5 High (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Fixed by applying https://gitlab.gnome.org/GNOME/libxml2/-/commit/17d950ae ### CVE-2025-6170 A flaw was found in the interactive shell of the xmllint command-line tool, used for parsing XML files. When a user inputs an overly long command, the program does not check the input size properly, which can cause it to crash. This issue might allow attackers to run harmful code in rare configurations without modern protections. NVD claims a severity of 2.5 Low (CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L) Fixed by applying https://gitlab.gnome.org/GNOME/libxml2/-/commit/5e9ec5c1 ### CVE-2025-49794 A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the <sch:name path="..."/> schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program's crash using libxml or other possible undefined behaviors. NVD claims a severity of 9.1 Critical (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H) Fixed by applying https://gitlab.gnome.org/GNOME/libxml2/-/commit/81cef8c5 ### CVE-2025-49795 A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions. This flaw allows an attacker to craft a malicious XML input to libxml2, leading to a denial of service. NVD claims a severity of 7.5 High (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Fixed by applying https://gitlab.gnome.org/GNOME/libxml2/-/commit/62048278 ### CVE-2025-49796 A vulnerability was found in libxml2. Processing certain sch:name elements from the input XML file can trigger a memory corruption issue. This flaw allows an attacker to craft a malicious XML input file that can lead libxml to crash, resulting in a denial of service or other possible undefined behavior due to sensitive data being corrupted in memory. NVD claims a severity of 9.1 Critical (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H) Fixed by applying https://gitlab.gnome.org/GNOME/libxml2/-/commit/81cef8c5 ## Affected Versions - Nokogiri < 1.18.9 when using CRuby (MRI) with vendored libxml2 ## Patched Versions - Nokogiri >= 1.18.9 ## Mitigation Upgrade to Nokogiri v1.18.9 or later. Users who are unable to upgrade Nokogiri may also choose a more complicated mitigation: compile and link Nokogiri against patched external libxml2 libraries which will also address these same issues. ## References - https://github.com/sparklemotion/nokogiri/pull/3526 - https://nvd.nist.gov/vuln/detail/CVE-2025-6021 - https://nvd.nist.gov/vuln/detail/CVE-2025-6170 - https://nvd.nist.gov/vuln/detail/CVE-2025-49794 - https://nvd.nist.gov/vuln/detail/CVE-2025-49795 - https://nvd.nist.gov/vuln/detail/CVE-2025-49796 |
Affected by 1 other vulnerability. |
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VCID-c6hb-sbhx-zqac
Aliases: GHSA-r3w4-36x6-7r99 |
Duplicate Advisory: Nokogiri updates packaged libxml2 to v2.12.7 to resolve CVE-2024-34459 ## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-r95h-9x8f-r3f7. This link is maintained to preserve external references. ## Original Description ## Summary Nokogiri v1.16.5 upgrades its dependency libxml2 to [2.12.7](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.12.7) from 2.12.6. libxml2 v2.12.7 addresses CVE-2024-34459: - described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/720 - patched by https://gitlab.gnome.org/GNOME/libxml2/-/commit/2876ac53 ## Impact There is no impact to Nokogiri users because the issue is present only in libxml2's `xmllint` tool which Nokogiri does not provide or expose. ## Timeline - 2024-05-13 05:57 EDT, libxml2 2.12.7 release is announced - 2024-05-13 08:30 EDT, nokogiri maintainers begin triage - 2024-05-13 10:05 EDT, nokogiri [v1.16.5 is released](https://github.com/sparklemotion/nokogiri/releases/tag/v1.16.5) and this GHSA made public |
Affected by 6 other vulnerabilities. |
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VCID-eb6k-ppfd-m7a3
Aliases: CVE-2022-40304 |
Multiple vulnerabilities have been found in libxml2, the worst of which could result in arbitrary code execution. |
Affected by 12 other vulnerabilities. |
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VCID-ghbk-uumc-dug3
Aliases: GHSA-r95h-9x8f-r3f7 |
Nokogiri updates packaged libxml2 to v2.12.7 to resolve CVE-2024-34459 ## Summary Nokogiri v1.16.5 upgrades its dependency libxml2 to [2.12.7](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.12.7) from 2.12.6. libxml2 v2.12.7 addresses CVE-2024-34459: - described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/720 - patched by https://gitlab.gnome.org/GNOME/libxml2/-/commit/2876ac53 ## Impact There is no impact to Nokogiri users because the issue is present only in libxml2's `xmllint` tool which Nokogiri does not provide or expose. ## Timeline - 2024-05-13 05:57 EDT, libxml2 2.12.7 release is announced - 2024-05-13 08:30 EDT, nokogiri maintainers begin triage - 2024-05-13 10:05 EDT, nokogiri [v1.16.5 is released](https://github.com/sparklemotion/nokogiri/releases/tag/v1.16.5) and this GHSA made public |
Affected by 6 other vulnerabilities. |
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VCID-hzjv-gf8n-jka2
Aliases: GHSA-vcc3-rw6f-jv97 |
Duplicate Advisory: Use-after-free in libxml2 via Nokogiri::XML::Reader # Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-xc9x-jj77-9p9j. This link is maintained to preserve external references. # Original Description ### Summary Nokogiri upgrades its dependency libxml2 as follows: - v1.15.6 upgrades libxml2 to 2.11.7 from 2.11.6 - v1.16.2 upgrades libxml2 to 2.12.5 from 2.12.4 libxml2 v2.11.7 and v2.12.5 address the following vulnerability: CVE-2024-25062 / https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-25062 - described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/604 - patched by https://gitlab.gnome.org/GNOME/libxml2/-/commit/92721970 Please note that this advisory only applies to the CRuby implementation of Nokogiri, and only if the packaged libraries are being used. If you've overridden defaults at installation time to use system libraries instead of packaged libraries, you should instead pay attention to your distro's libxml2 release announcements. JRuby users are not affected. ### Severity The Nokogiri maintainers have evaluated this as **Moderate**. ### Impact From the CVE description, this issue applies to the `xmlTextReader` module (which underlies `Nokogiri::XML::Reader`): > 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. ### Mitigation Upgrade to Nokogiri `~> 1.15.6` or `>= 1.16.2`. Users who are unable to upgrade Nokogiri may also choose a more complicated mitigation: compile and link Nokogiri against patched external libxml2 libraries which will also address these same issues. |
Affected by 8 other vulnerabilities. Affected by 8 other vulnerabilities. |
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VCID-jfh3-1sgm-7ug2
Aliases: GHSA-wx95-c6cv-8532 |
Nokogiri does not check the return value from xmlC14NExecute ## Summary Nokogiri's CRuby extension fails to check the return value from `xmlC14NExecute` in the method `Nokogiri::XML::Document#canonicalize` and `Nokogiri::XML::Node#canonicalize`. When canonicalization fails, an empty string is returned instead of raising an exception. This incorrect return value may allow downstream libraries to accept invalid or incomplete canonicalized XML, which has been demonstrated to enable signature validation bypass in SAML libraries. JRuby is not affected, as the Java implementation correctly raises `RuntimeError` on canonicalization failure. ## Mitigation Upgrade to Nokogiri `>= 1.19.1`. ## Severity The maintainers have assessed this as **Medium** severity. Nokogiri itself is a parsing library without a clear security boundary related to canonicalization, so the direct impact is that a method returns incorrect data on invalid input. However, this behavior was exploited in practice to bypass SAML signature validation in downstream libraries (see References). ## Credit This vulnerability was responsibly reported by HackerOne researcher `d4d`. |
Affected by 0 other vulnerabilities. |
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VCID-q732-nexj-1ue6
Aliases: GHSA-5mwf-688x-mr7x |
Duplicate Advisory: Nokogiri updates packaged libxml2 to 2.13.6 to resolve CVE-2025-24928 and CVE-2024-56171 # Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-vvfq-8hwr-qm4m. This link is maintained to preserve external references. # Original Description ## Summary Nokogiri v1.18.3 upgrades its dependency libxml2 to [v2.13.6](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.13.6). libxml2 v2.13.6 addresses: - CVE-2025-24928 - described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/847 - CVE-2024-56171 - described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/828 ## Impact ### CVE-2025-24928 Stack-buffer overflow is possible when reporting DTD validation errors if the input contains a long (~3kb) QName prefix. ### CVE-2024-56171 Use-after-free is possible during validation against untrusted XML Schemas (.xsd) and, potentially, validation of untrusted documents against trusted Schemas if they make use of `xsd:keyref` in combination with recursively defined types that have additional identity constraints. |
Affected by 4 other vulnerabilities. |
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VCID-snr1-kaug-43aa
Aliases: CVE-2022-29181 GHSA-xh29-r2w5-wx8m |
Multiple vulnerabilities have been discovered in Nokogiri, the worst of which could result in denial of service. |
Affected by 14 other vulnerabilities. |
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VCID-udew-3gre-13hy
Aliases: CVE-2022-40303 |
Multiple vulnerabilities have been found in libxml2, the worst of which could result in arbitrary code execution. |
Affected by 12 other vulnerabilities. |
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VCID-uf9q-1ds5-wbev
Aliases: GHSA-mrxw-mxhj-p664 |
Nokogiri updates packaged libxslt to v1.1.43 to resolve multiple CVEs ## Summary Nokogiri v1.18.4 upgrades its dependency libxslt to [v1.1.43](https://gitlab.gnome.org/GNOME/libxslt/-/releases/v1.1.43). libxslt v1.1.43 resolves: - CVE-2025-24855: Fix use-after-free of XPath context node - CVE-2024-55549: Fix UAF related to excluded namespaces ## Impact ### CVE-2025-24855 - "Use-after-free due to xsltEvalXPathStringNs leaking xpathCtxt->node" - MITRE has rated this 7.8 High CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H - Upstream report: https://gitlab.gnome.org/GNOME/libxslt/-/issues/128 - NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2025-24855 ### CVE-2024-55549 - "Use-after-free related to excluded result prefixes" - MITRE has rated this 7.8 High CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H - Upstream report: https://gitlab.gnome.org/GNOME/libxslt/-/issues/127 - NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2024-55549 |
Affected by 3 other vulnerabilities. |
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VCID-w8jf-tsmr-g7cd
Aliases: GHSA-5w6v-399v-w3cc |
Nokogiri updates packaged libxml2 to v2.13.8 to resolve CVE-2025-32414 and CVE-2025-32415 ## Summary Nokogiri v1.18.8 upgrades its dependency libxml2 to [v2.13.8](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.13.8). libxml2 v2.13.8 addresses: - CVE-2025-32414 - described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/889 - CVE-2025-32415 - described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/890 ## Impact ### CVE-2025-32414: No impact In libxml2 before 2.13.8 and 2.14.x before 2.14.2, out-of-bounds memory access can occur in the Python API (Python bindings) because of an incorrect return value. This occurs in xmlPythonFileRead and xmlPythonFileReadRaw because of a difference between bytes and characters. **There is no impact** from this CVE for Nokogiri users. ### CVE-2025-32415: Low impact In libxml2 before 2.13.8 and 2.14.x before 2.14.2, xmlSchemaIDCFillNodeTables in xmlschemas.c has a heap-based buffer under-read. To exploit this, a crafted XML document must be validated against an XML schema with certain identity constraints, or a crafted XML schema must be used. In the upstream issue, further context is provided by the maintainer: > The bug affects validation against untrusted XML Schemas (.xsd) and validation of untrusted > documents against trusted Schemas if they make use of xsd:keyref in combination with recursively > defined types that have additional identity constraints. MITRE has published a severity score of 2.9 LOW (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L) for this CVE. |
Affected by 2 other vulnerabilities. |
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VCID-y5vb-sn4p-eqd9
Aliases: GHSA-pxvg-2qj5-37jq GMS-2023-1115 |
Nokogiri updates packaged libxml2 to v2.10.4 to resolve multiple CVEs ### Summary Nokogiri v1.14.3 upgrades the packaged version of its dependency libxml2 to [v2.10.4](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.10.4) from v2.10.3. libxml2 v2.10.4 addresses the following known vulnerabilities: - [CVE-2023-29469](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29469): Hashing of empty dict strings isn't deterministic - [CVE-2023-28484](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-28484): Fix null deref in xmlSchemaFixupComplexType - Schemas: Fix null-pointer-deref in xmlSchemaCheckCOSSTDerivedOK Please note that this advisory only applies to the CRuby implementation of Nokogiri `< 1.14.3`, and only if the _packaged_ libraries are being used. If you've overridden defaults at installation time to use _system_ libraries instead of packaged libraries, you should instead pay attention to your distro's `libxml2` release announcements. ### Mitigation Upgrade to Nokogiri `>= 1.14.3`. Users who are unable to upgrade Nokogiri may also choose a more complicated mitigation: compile and link Nokogiri against external libraries libxml2 `>= 2.10.4` which will also address these same issues. ### Impact No public information has yet been published about the security-related issues other than the upstream commits. Examination of those changesets indicate that the more serious issues relate to libxml2 dereferencing NULL pointers and potentially segfaulting while parsing untrusted inputs. The commits can be examined at: - [[CVE-2023-29469] Hashing of empty dict strings isn't deterministic (09a2dd45) · Commits · GNOME / libxml2 · GitLab](https://gitlab.gnome.org/GNOME/libxml2/-/commit/09a2dd453007f9c7205274623acdd73747c22d64) - [[CVE-2023-28484] Fix null deref in xmlSchemaFixupComplexType (647e072e) · Commits · GNOME / libxml2 · GitLab](https://gitlab.gnome.org/GNOME/libxml2/-/commit/647e072ea0a2f12687fa05c172f4c4713fdb0c4f) - [schemas: Fix null-pointer-deref in xmlSchemaCheckCOSSTDerivedOK (4c6922f7) · Commits · GNOME / libxml2 · GitLab](https://gitlab.gnome.org/GNOME/libxml2/-/commit/4c6922f763ad958c48ff66f82823ae21f2e92ee6) |
Affected by 10 other vulnerabilities. |
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VCID-yeku-1zjh-kbea
Aliases: GHSA-vvfq-8hwr-qm4m |
Nokogiri updates packaged libxml2 to 2.13.6 to resolve CVE-2025-24928 and CVE-2024-56171 ## Summary Nokogiri v1.18.3 upgrades its dependency libxml2 to [v2.13.6](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.13.6). libxml2 v2.13.6 addresses: - CVE-2025-24928 - described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/847 - CVE-2024-56171 - described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/828 ## Impact ### CVE-2025-24928 Stack-buffer overflow is possible when reporting DTD validation errors if the input contains a long (~3kb) QName prefix. ### CVE-2024-56171 Use-after-free is possible during validation against untrusted XML Schemas (.xsd) and, potentially, validation of untrusted documents against trusted Schemas if they make use of `xsd:keyref` in combination with recursively defined types that have additional identity constraints. |
Affected by 4 other vulnerabilities. |
| Vulnerability | Summary | Aliases |
|---|---|---|
| VCID-m7km-hbm9-23h4 | Integer Overflow or Wraparound in libxml2 affects Nokogiri ### Summary Nokogiri v1.13.5 upgrades the packaged version of its dependency libxml2 from v2.9.13 to [v2.9.14](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.9.14). libxml2 v2.9.14 addresses [CVE-2022-29824](https://nvd.nist.gov/vuln/detail/CVE-2022-29824). This version also includes several security-related bug fixes for which CVEs were not created, including a potential double-free, potential memory leaks, and integer-overflow. Please note that this advisory only applies to the CRuby implementation of Nokogiri `< 1.13.5`, and only if the _packaged_ libraries are being used. If you've overridden defaults at installation time to use _system_ libraries instead of packaged libraries, you should instead pay attention to your distro's `libxml2` and `libxslt` release announcements. ### Mitigation Upgrade to Nokogiri `>= 1.13.5`. Users who are unable to upgrade Nokogiri may also choose a more complicated mitigation: compile and link Nokogiri against external libraries libxml2 `>= 2.9.14` which will also address these same issues. ### Impact #### libxml2 [CVE-2022-29824](https://nvd.nist.gov/vuln/detail/CVE-2022-29824) - **CVSS3 score**: - Unspecified upstream - Nokogiri maintainers evaluate at 8.6 (High) ([CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H)). Note that this is different from the CVSS assessed by NVD. - **Type**: Denial of service, information disclosure - **Description**: 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. - **Fixed**: https://gitlab.gnome.org/GNOME/libxml2/-/commit/2554a24 All versions of libml2 prior to v2.9.14 are affected. Applications parsing or serializing multi-gigabyte documents (in excess of INT_MAX bytes) may be vulnerable to an integer overflow bug in buffer handling that could lead to exposure of confidential data, modification of unrelated data, or a segmentation fault resulting in a denial-of-service. ### References - [libxml2 v2.9.14 release notes](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.9.14) - [CVE-2022-29824](https://nvd.nist.gov/vuln/detail/CVE-2022-29824) - [CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer](https://cwe.mitre.org/data/definitions/119.html) |
GHSA-cgx6-hpwq-fhv5
GMS-2022-1438 |