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| purl | pkg:deb/debian/undertow@2.3.20-1?distro=sid |
| Vulnerability | Summary | Fixed by |
|---|---|---|
| This package is not known to be affected by vulnerabilities. | ||
| Vulnerability | Summary | Aliases |
|---|---|---|
| VCID-14ff-vn3t-vyhy | Undertow vulnerable to memory exhaustion due to buffer leak Buffer leak on incoming WebSocket PONG message(s) in Undertow before 2.0.40 and 2.2.10 can lead to memory exhaustion and allow a denial of service. |
CVE-2021-3690
GHSA-fj7c-vg2v-ccrm GMS-2022-2964 |
| VCID-1vrj-chs2-d3ab | Undertow Denial of Service vulnerability A flaw was found in Undertow package. Using the FormAuthenticationMechanism, a malicious user could trigger a Denial of Service by sending crafted requests, leading the server to an OutofMemory error, exhausting the server's memory. |
CVE-2023-1973
GHSA-97cq-f4jm-mv8h |
| VCID-1w4t-um5v-jkfv | Path Traversal The AJP connector in undertow does not use the `ALLOW_ENCODED_SLASH` option and thus allow the the slash / anti-slash characters encoded in the url which may lead to path traversal and result in the information disclosure of arbitrary local files. |
CVE-2018-1048
GHSA-prfw-3qx6-g9xr |
| VCID-2cv5-9v62-kfbm | Undertow Path Traversal vulnerability A path traversal vulnerability was found in Undertow. This issue may allow a remote attacker to append a specially-crafted sequence to an HTTP request for an application deployed to JBoss EAP, which may permit access to privileged or restricted files and directories. |
CVE-2024-1459
GHSA-v76w-3ph8-vm66 |
| VCID-2e2u-nvuu-kfbs | Inconsistent Interpretation of HTTP Requests (HTTP Request Smuggling) Invalid characters are allowed in query strings and path parameters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack, or obtain sensitive information from requests other than their own. |
CVE-2017-7559
GHSA-rj76-h87p-r3wf |
| VCID-2ez8-r9wv-53du | undertow before versions 1.4.18.SP1, 2.0.2.Final, 1.4.24.Final was found vulnerable when using Digest authentication, the server does not ensure that the value of URI in the Authorization header matches the URI in HTTP request line. This allows the attacker to cause a MITM attack and access the desired content on the server. |
CVE-2017-12196
GHSA-cp7v-vmv7-6x2q |
| VCID-469b-j213-6ufk | Undertow Uncontrolled Resource Consumption Vulnerability A vulnerability was found in Undertow. This vulnerability impacts a server that supports the wildfly-http-client protocol. Whenever a malicious user opens and closes a connection with the HTTP port of the server and then closes the connection immediately, the server will end with both memory and open file limits exhausted at some point, depending on the amount of memory available. At HTTP upgrade to remoting, the WriteTimeoutStreamSinkConduit leaks connections if RemotingConnection is closed by Remoting ServerConnectionOpenListener. Because the remoting connection originates in Undertow as part of the HTTP upgrade, there is an external layer to the remoting connection. This connection is unaware of the outermost layer when closing the connection during the connection opening procedure. Hence, the Undertow WriteTimeoutStreamSinkConduit is not notified of the closed connection in this scenario. Because WriteTimeoutStreamSinkConduit creates a timeout task, the whole dependency tree leaks via that task, which is added to XNIO WorkerThread. So, the workerThread points to the Undertow conduit, which contains the connections and causes the leak. |
CVE-2024-1635
GHSA-w6qf-42m7-vh68 |
| VCID-4kdg-asyc-rbdx | Undertow Missing Authorization when requesting a protected directory without trailing slash undertow before version 2.0.23.Final is vulnerable to an information leak issue. Web apps may have their directory structures predicted through requests without trailing slashes via the api. |
CVE-2019-10184
GHSA-w69w-jvc7-wjgv |
| VCID-4v1f-kt5y-w7d1 | Undertow: DoS can be achieved as Undertow server waits for the LAST_CHUNK forever for EJB invocations |
CVE-2022-2764
|
| VCID-5585-a76n-zubf | Allocation of Resources Without Limits or Throttling A flaw was found in Undertow. When an AJP request is sent that exceeds the max-header-size attribute in ajp-listener, JBoss EAP is marked in an error state by mod_cluster in httpd, causing JBoss EAP to close the TCP connection without returning an AJP response. This happens because mod_proxy_cluster marks the JBoss EAP instance as an error worker when the TCP connection is closed from the backend after sending the AJP request without receiving an AJP response, and stops forwarding. This issue could allow a malicious user could to repeatedly send requests that exceed the max-header-size, causing a Denial of Service (DoS). |
CVE-2023-5379
|
| VCID-62gn-nwup-8uat | undertow: potential security issue in flow control over HTTP/2 may lead to DOS(incomplete fix for CVE-2021-3629) |
CVE-2022-1259
|
| VCID-73st-24ck-uydb | HTTP Request Smuggling in Undertow A flaw was discovered in all versions of Undertow before Undertow 2.2.0.Final, where HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own. |
CVE-2020-10687
GHSA-p9w3-gwc2-cr49 |
| VCID-77xn-dtdn-hfa2 | Inconsistent Interpretation of HTTP Requests (HTTP Request Smuggling) It was discovered in Undertow that the code that parses the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack, or obtain sensitive information from requests other than their own. |
CVE-2017-2666
GHSA-mcfm-h73v-635m |
| VCID-7ec2-9kmy-77eh | It was found that URLResource.getLastModified() in Undertow closes the file descriptors only when they are finalized which can cause file descriptors to exhaust. This leads to a file handler leak. |
CVE-2018-1114
GHSA-gjjx-gqm4-wcgm |
| VCID-7yc7-e35f-8uhj | Uncontrolled Resource Consumption A flaw was found in undertow. Servlets annotated with @MultipartConfig may cause an OutOfMemoryError due to large multipart content. This may allow unauthorized users to cause remote Denial of Service (DoS) attack. If the server uses fileSizeThreshold to limit the file size, it's possible to bypass the limit by setting the file name in the request to null. |
CVE-2023-3223
GHSA-65h2-wf7m-q2v8 |
| VCID-93ut-2de3-ckc5 | undertow: Double AJP response for 400 from EAP 7 results in CPING failures |
CVE-2022-1319
|
| VCID-9zut-79gt-1bgy | It was found in Undertow before 1.3.28 that with non-clean TCP close, the Websocket server gets into infinite loop on every IO thread, effectively causing DoS. |
CVE-2017-2670
GHSA-3x7h-5hfr-hvjm |
| VCID-ay2f-3xcv-dqdc | Improper Neutralization of CRLF Sequences in HTTP Headers CRLF injection vulnerability in the Undertow web server allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors. |
CVE-2016-4993
GHSA-qcqr-hcjq-whfq |
| VCID-beaj-uk9m-17be | Denial of service in Undertow A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability. This affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1. |
CVE-2020-27782
GHSA-rhcw-wjcm-9h6g |
| VCID-bhrz-ea7j-k3bh | Information Exposure An information exposure of plain text credentials through log files because `Connectors.executeRootHandler:402` logs the `HttpServerExchange` object at `ERROR` level using `UndertowLogger.REQUEST_LOGGER.undertowRequestFailed(t,exchange)`. |
CVE-2019-3888
GHSA-jwgx-9mmh-684w |
| VCID-bm42-byxp-2kb5 | In Undertow before versions 7.1.2.CR1, 7.1.2.GA it was found that the fix for CVE-2016-4993 was incomplete and Undertow web server is vulnerable to the injection of arbitrary HTTP headers, and also response splitting, due to insufficient sanitization and validation of user input before the input is used as part of an HTTP header value. |
CVE-2018-1067
GHSA-47mp-rq2x-wjf2 |
| VCID-bpuw-kn4r-6kau | HTTP request smuggling in Undertow A flaw was found in Undertow. A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own. The highest threat from this vulnerability is to data confidentiality and integrity. |
CVE-2021-20220
GHSA-qjwc-v72v-fq6r |
| VCID-brsa-ygcs-wudx | Undertow Denial of Service vulnerability A vulnerability was found in Undertow, where the chunked response hangs after the body was flushed. The response headers and body were sent but the client would continue waiting as Undertow does not send the expected `0\r\n` termination of the chunked response. This results in uncontrolled resource consumption, leaving the server side to a denial of service attack. This happens only with Java 17 TLSv1.3 scenarios. |
CVE-2024-5971
GHSA-xpp6-8r3j-ww43 |
| VCID-bsd5-k44s-buhu | Undertow Missing Release of Memory after Effective Lifetime vulnerability A vulnerability was found in Undertow. This issue requires enabling the learning-push handler in the server's config, which is disabled by default, leaving the maxAge config in the handler unconfigured. The default is -1, which makes the handler vulnerable. If someone overwrites that config, the server is not subject to the attack. The attacker needs to be able to reach the server with a normal HTTP request. |
CVE-2024-3653
GHSA-ch7q-gpff-h9hp |
| VCID-cf5j-2dz8-7bbu | Undertow vulnerable to Denial of Service (DoS) attacks Undertow client side invocation timeout raised when calling over HTTP2, this vulnerability can allow attacker to carry out denial of service (DoS) attacks in versions less than 2.2.15 Final. |
CVE-2021-3859
GHSA-339q-62wm-c39w GMS-2022-2963 |
| VCID-d3ty-z2dg-vka1 | Undertow incorrectly parses cookies A flaw was found in Undertow, which incorrectly parses cookies with certain value-delimiting characters in incoming requests. This issue could allow an attacker to construct a cookie value to exfiltrate HttpOnly cookie values or spoof arbitrary additional cookie values, leading to unauthorized data access or modification. The main threat from this flaw impacts data confidentiality and integrity. |
CVE-2023-4639
GHSA-3jrv-jgp8-45v3 |
| VCID-df16-86dz-nfc9 | Undertow's url-encoded request path information can be broken on ajp-listener A vulnerability was found in Undertow, where URL-encoded request paths can be mishandled during concurrent requests on the AJP listener. This issue arises because the same buffer is used to decode the paths for multiple requests simultaneously, leading to incorrect path information being processed. As a result, the server may attempt to access the wrong path, causing errors such as "404 Not Found" or other application failures. This flaw can potentially lead to a denial of service, as legitimate resources become inaccessible due to the path mix-up. |
CVE-2024-6162
GHSA-9442-gm4v-r222 |
| VCID-dvxb-wu3m-xuaz | Improper Authorization in Undertoe A file inclusion vulnerability was found in the AJP connector enabled with a default AJP configuration port of 8009 in Undertow version 2.0.29.Final and before and was fixed in 2.0.30.Final. A remote, unauthenticated attacker could exploit this vulnerability to read web application files from a vulnerable server. In instances where the vulnerable server allows file uploads, an attacker could upload malicious JavaServer Pages (JSP) code within a variety of file types and trigger this vulnerability to gain remote code execution. |
CVE-2020-1745
GHSA-gv2w-88hx-8m9r |
| VCID-gsr8-1dea-effx | undertow Race Condition vulnerability A flaw was found in undertow. The HTTP2SourceChannel fails to write the final frame under some circumstances, resulting in a denial of service. The highest threat from this vulnerability is availability. This flaw affects Undertow versions prior to 2.0.35.SP1, prior to 2.2.6.SP1, prior to 2.2.7.SP1, prior to 2.0.36.SP1, prior to 2.2.9.Final and prior to 2.0.39.Final. |
CVE-2021-3597
GHSA-mfhv-gwf8-4m88 |
| VCID-hbg1-zqn4-hqcm | Undertow: Memory Leak in Undertow HttpOpenListener due to holding remoting connections indefinitely |
CVE-2019-19343
|
| VCID-jz3d-vvfb-jfbw | Undertow client not checking server identity presented by server certificate in https connections The undertow client is not checking the server identity presented by the server certificate in https connections. This should be performed by default in https and in http/2. |
CVE-2022-4492
GHSA-pfcc-3g6r-8rg8 |
| VCID-k6c9-mckm-cyhy | HTTP Request Smuggling in Undertow A flaw was found in Undertow in versions before 2.1.1.Final, regarding the processing of invalid HTTP requests with large chunk sizes. This flaw allows an attacker to take advantage of HTTP request smuggling. |
CVE-2020-10719
GHSA-cccf-7xw3-p2vr |
| VCID-ns3p-22xg-q3bz | Undertow MadeYouReset HTTP/2 DDoS Vulnerability A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering abuse counters. This issue, referred to as the "MadeYouReset" attack, allows malicious clients to induce excessive server workload by repeatedly causing server-side stream aborts. While not a protocol bug, this highlights a common implementation weakness that can be exploited to cause a denial of service (DoS). |
CVE-2025-9784
GHSA-95h4-w6j8-2rp8 |
| VCID-ntaz-sckf-mubx | Information disclosure via directory traversal Directory traversal vulnerability in this package when running on Windows, allows remote attackers to read arbitrary files via a `..` in a resource URI. |
CVE-2014-7816
GHSA-h6p6-fc4w-cqhx |
| VCID-p9y4-yce4-zqbk | Undertow vulnerable to Uncontrolled Resource Consumption A vulnerability was found in the Undertow HTTP server in versions before 2.0.29 when listening on HTTPS. An attacker can target the HTTPS port to carry out a Denial Of Service (DOS) to make the service unavailable on SSL. |
CVE-2019-14888
GHSA-vjxc-frw4-jmh5 |
| VCID-rqvc-k1jm-9kg9 | Information Exposure An information leak vulnerability was found in Undertow. If all headers are not written out in the first `write()` call, the code that handles flushing the buffer will always write out the full contents of the `writevBuffer` buffer, which may contain data from previous requests. |
CVE-2018-14642
GHSA-vf6r-mmhc-3xcm |
| VCID-scjb-1mwk-rfdd | Potential to access user credentials from the log files when debug logging enabled A flaw was found in, all under 2.0.20, in the Undertow DEBUG log for io.undertow.request.security. If enabled, an attacker could abuse this flaw to obtain the user's credentials from the log files. |
CVE-2019-10212
GHSA-8vh8-vc28-m2hf |
| VCID-sxup-wzjc-tue1 | Improper Input Validation in Undertow A flaw was found in all undertow-2.x.x SP1 versions prior to undertow-2.0.30.SP1, all undertow-1.x.x and undertow-2.x.x versions prior to undertow-2.1.0.Final, where the Servlet container causes servletPath to normalize incorrectly by truncating the path after semicolon which may lead to an application mapping resulting in the security bypass. |
CVE-2020-1757
GHSA-2w73-fqqj-c92p |
| VCID-urxh-sp91-kuet | Allocation of Resources Without Limits or Throttling in Undertow A flaw was discovered in Undertow in versions before Undertow 2.1.1.Final where certain requests to the "Expect: 100-continue" header may cause an out of memory error. This flaw may potentially lead to a denial of service. |
CVE-2020-10705
GHSA-g4cp-h53p-v3v8 |
| VCID-usz2-tufg-k7gz | Undertow denial of service vulnerability A flaw was found in undertow. This issue makes achieving a denial of service possible due to an unexpected handshake status updated in SslConduit, where the loop never terminates. |
CVE-2023-1108
GHSA-m4mm-pg93-fv78 |
| VCID-xftw-raz7-b7e1 | Undertow vulnerable to Dos via Large AJP request When a POST request comes through AJP and the request exceeds the max-post-size limit (maxEntitySize), Undertow's AjpServerRequestConduit implementation closes a connection without sending any response to the client/proxy. This behavior results in that a front-end proxy marking the backend worker (application server) as an error state and not forward requests to the worker for a while. In mod_cluster, this continues until the next STATUS request (10 seconds intervals) from the application server updates the server state. So, in the worst case, it can result in "All workers are in error state" and mod_cluster responds "503 Service Unavailable" for a while (up to 10 seconds). In mod_proxy_balancer, it does not forward requests to the worker until the "retry" timeout passes. However, luckily, mod_proxy_balancer has "forcerecovery" setting (On by default; this parameter can force the immediate recovery of all workers without considering the retry parameter of the workers if all workers of a balancer are in error state.). So, unlike mod_cluster, mod_proxy_balancer does not result in responding "503 Service Unavailable". An attacker could use this behavior to send a malicious request and trigger server errors, resulting in DoS (denial of service). This flaw was fixed in Undertow 2.2.19.Final, Undertow 2.3.0.Alpha2. |
CVE-2022-2053
GHSA-95rf-557x-44g5 |
| VCID-xme8-usmd-vqg3 | Undertow vulnerable to Race Condition A vulnerability was found in Undertow where the ProxyProtocolReadListener reuses the same StringBuilder instance across multiple requests. This issue occurs when the parseProxyProtocolV1 method processes multiple requests on the same HTTP connection. As a result, different requests may share the same StringBuilder instance, potentially leading to information leakage between requests or responses. In some cases, a value from a previous request or response may be erroneously reused, which could lead to unintended data exposure. This issue primarily results in errors and connection termination but creates a risk of data leakage in multi-request environments. |
CVE-2024-7885
GHSA-9623-mqmm-5rcf |
| VCID-y5s2-w88t-8uhx | Uncontrolled Resource Consumption Remote attackers could cause a denial of service (CPU and disk consumption) via a long URL. |
CVE-2016-7046
GHSA-3f57-w2rp-72fc |
| VCID-ygp7-kj2w-syat | Inconsistent Interpretation of HTTP Requests (HTTP Request Smuggling) It was discovered that Undertow processes http request headers with unusual whitespaces which can cause possible http request smuggling. |
CVE-2017-12165
GHSA-5gg7-5wv8-4gcj |
| VCID-yn69-8upm-7yc2 | Undertow Uncontrolled Resource Consumption A flaw was found in Undertow. A potential security issue in flow control handling by the browser over HTTP/2 may potentially cause overhead or a denial of service in the server. The highest threat from this vulnerability is availability. This flaw affects Undertow versions prior to 2.0.40.Final and prior to 2.2.11.Final. |
CVE-2021-3629
GHSA-rf6q-vx79-mjxr |