csaf_redhat - rhsa-2025:11333

rhsa-2025:11333

Vulnerability from csaf_redhat

Published

2025-07-16 15:30

Modified

2025-08-03 09:25

Summary

Red Hat Security Advisory: tomcat security update

Notes

Topic

An update for tomcat is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details

Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies. Security Fix(es): * tomcat: Incomplete fix for CVE-2024-50379 - RCE due to TOCTOU issue in JSP compilation (CVE-2024-56337) * tomcat: Apache Tomcat: DoS via malformed HTTP/2 PRIORITY_UPDATE frame (CVE-2025-31650) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

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          "text": "The fix for CVE-2024-50379 in Apache Tomcat was insufficient to mitigate the issue fully. A Time-of-check Time-of-use (TOCTOU) race condition occurs during JSP compilation on case-insensitive file systems when the default servlet is enabled for writing. This vulnerability allows an uploaded file to be treated as a JSP and executed, resulting in remote code execution.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "tomcat: Incomplete fix for CVE-2024-50379 - RCE due to TOCTOU issue in JSP compilation",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The vulnerability is marked as moderate rather than important due to the specific conditions required for exploitation. For the attack to succeed, the server must be running on a case-insensitive file system (e.g., Windows or macOS) and have the default servlet enabled with write permissions \u2014a configuration that is not common in production-grade environments. Additionally, the attacker must gain the ability to upload files to a writable directory and exploit a race condition to execute them as JSP files, which introduces a level of complexity and timing dependency.\n\nThe pki-servlet-engine package has been obsoleted by the tomcat package as of Red Hat Enterprise Linux 8.9 so no fixes for the servlet engine would be made available.\n\nAlthough Red Hat Satellite Server\u2014 via its Candlepin component\u2014 employs the use of Tomcat, Satellite is itself not considered Affected. Satellite does not provide the Tomcat package\u2014 it is inherited from the underlying RHEL Operating System. Users of Red Hat Satellite are advised to refer to the impact state of the Tomcat package provided by the version of RHEL underpinning the Satellite Server instance, as any errata will be provided via RHEL Application Stream repositories.\n \nIt should be noted that a successful attack requires the server be running on a case-insensitive file system. As Satellite only runs on RHEL\u2014 and RHEL employs case-sensitive filesystems by default\u2014 a typical Satellite server instance is not vulnerable. Additionally, a successful attack also requires the server have the default servlet enabled with write permissions\u2013 a condition which does not exist in a default Satellite deployment. Again, a typical Satellite server instance is not vulnerable.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56337"
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          "summary": "https://lists.apache.org/thread/b2b9qrgjrz1kvo4ym8y2wkfdvwoq6qbp",
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          "url": "https://www.cve.org/CVERecord?id=CVE-2024-50379"
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      "release_date": "2024-12-20T15:28:54.738000+00:00",
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          "date": "2025-07-16T15:30:03+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
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            "AppStream-8.10.0.Z.MAIN.EUS:tomcat-webapps-1:9.0.87-1.el8_10.4.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
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            "AppStream-8.10.0.Z.MAIN.EUS:tomcat-1:9.0.87-1.el8_10.4.src",
            "AppStream-8.10.0.Z.MAIN.EUS:tomcat-admin-webapps-1:9.0.87-1.el8_10.4.noarch",
            "AppStream-8.10.0.Z.MAIN.EUS:tomcat-docs-webapp-1:9.0.87-1.el8_10.4.noarch",
            "AppStream-8.10.0.Z.MAIN.EUS:tomcat-el-3.0-api-1:9.0.87-1.el8_10.4.noarch",
            "AppStream-8.10.0.Z.MAIN.EUS:tomcat-jsp-2.3-api-1:9.0.87-1.el8_10.4.noarch",
            "AppStream-8.10.0.Z.MAIN.EUS:tomcat-lib-1:9.0.87-1.el8_10.4.noarch",
            "AppStream-8.10.0.Z.MAIN.EUS:tomcat-servlet-4.0-api-1:9.0.87-1.el8_10.4.noarch",
            "AppStream-8.10.0.Z.MAIN.EUS:tomcat-webapps-1:9.0.87-1.el8_10.4.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "tomcat: Incomplete fix for CVE-2024-50379 - RCE due to TOCTOU issue in JSP compilation"
    },
    {
      "cve": "CVE-2025-31650",
      "cwe": {
        "id": "CWE-20",
        "name": "Improper Input Validation"
      },
      "discovery_date": "2025-04-28T20:00:59.032884+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2362783"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Apache Tomcat. This vulnerability allows an application-level denial of service (DoS), causing it to become unresponsive or slow via maliciously crafted HTTP/2 prioritization headers. It performs an incomplete cleanup of failed requests, which triggers a memory leak.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "tomcat: Apache Tomcat: DoS via malformed HTTP/2 PRIORITY_UPDATE frame",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This is marked as Important vulnerability rather than a Moderate flaw because it introduces a reliable, unauthenticated denial-of-service (DoS) vector that exploits the core request-handling mechanism in Apache Tomcat. Specifically, the improper handling of invalid HTTP/2 Priority headers results in incomplete memory deallocation, creating a server-side memory leak. Unlike transient request errors that are gracefully handled and discarded, these malformed requests accumulate residual memory allocations over time. \n\nThis means an attacker can trigger an OutOfMemoryException simply by sending a large volume of crafted HTTP/2 requests, effectively rendering the server non-functional without needing authentication or access to specific endpoints. Given that HTTP/2 is widely used in production environments to improve performance, this vulnerability targets a default, high-traffic pathway, making it more impactful.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
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          "AppStream-8.10.0.Z.MAIN.EUS:tomcat-1:9.0.87-1.el8_10.4.src",
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          "AppStream-8.10.0.Z.MAIN.EUS:tomcat-jsp-2.3-api-1:9.0.87-1.el8_10.4.noarch",
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          "AppStream-8.10.0.Z.MAIN.EUS:tomcat-servlet-4.0-api-1:9.0.87-1.el8_10.4.noarch",
          "AppStream-8.10.0.Z.MAIN.EUS:tomcat-webapps-1:9.0.87-1.el8_10.4.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2025-31650"
        },
        {
          "category": "external",
          "summary": "RHBZ#2362783",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2362783"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2025-31650",
          "url": "https://www.cve.org/CVERecord?id=CVE-2025-31650"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-31650",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-31650"
        },
        {
          "category": "external",
          "summary": "https://lists.apache.org/thread/j6zzk0y3yym9pzfzkq5vcyxzz0yzh826",
          "url": "https://lists.apache.org/thread/j6zzk0y3yym9pzfzkq5vcyxzz0yzh826"
        }
      ],
      "release_date": "2025-04-28T19:14:31.107000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-07-16T15:30:03+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
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            "AppStream-8.10.0.Z.MAIN.EUS:tomcat-1:9.0.87-1.el8_10.4.src",
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            "AppStream-8.10.0.Z.MAIN.EUS:tomcat-webapps-1:9.0.87-1.el8_10.4.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2025:11333"
        },
        {
          "category": "workaround",
          "details": "Mitigation is either unavailable or does not meet Red Hat Product Security standards for usability, deployment, applicability, or stability.",
          "product_ids": [
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      "scores": [
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          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
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      ],
      "title": "tomcat: Apache Tomcat: DoS via malformed HTTP/2 PRIORITY_UPDATE frame"
    }
  ]
}

CVE-2024-56337 (GCVE-0-2024-56337)

Vulnerability from cvelistv5

Published

2024-12-20 15:28

Modified

2025-08-13 13:29

Severity ?

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Summary

Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.0.97. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected. The mitigation for CVE-2024-50379 was incomplete. Users running Tomcat on a case insensitive file system with the default servlet write enabled (readonly initialisation parameter set to the non-default value of false) may need additional configuration to fully mitigate CVE-2024-50379 depending on which version of Java they are using with Tomcat: - running on Java 8 or Java 11: the system property sun.io.useCanonCaches must be explicitly set to false (it defaults to true) - running on Java 17: the system property sun.io.useCanonCaches, if set, must be set to false (it defaults to false) - running on Java 21 onwards: no further configuration is required (the system property and the problematic cache have been removed) Tomcat 11.0.3, 10.1.35 and 9.0.99 onwards will include checks that sun.io.useCanonCaches is set appropriately before allowing the default servlet to be write enabled on a case insensitive file system. Tomcat will also set sun.io.useCanonCaches to false by default where it can.

References

►

URL

	Vendor	Product	Version
	Apache Software Foundation	Apache Tomcat	Version: 11.0.0-M1 ≤ 11.0.1 Version: 10.1.0-M1 ≤ 10.1.33 Version: 9.0.0.M1 ≤ 9.0.97 Version: 8.5.0 ≤ 8.5.100

CVE-2025-31650 (GCVE-0-2025-31650)

Vulnerability from cvelistv5

Published

2025-04-28 19:14

Modified

2025-08-08 11:43

Severity ?

CWE

CWE-459 - Incomplete Cleanup

Summary

Improper Input Validation vulnerability in Apache Tomcat. Incorrect error handling for some invalid HTTP priority headers resulted in incomplete clean-up of the failed request which created a memory leak. A large number of such requests could trigger an OutOfMemoryException resulting in a denial of service. This issue affects Apache Tomcat: from 9.0.76 through 9.0.102, from 10.1.10 through 10.1.39, from 11.0.0-M2 through 11.0.5. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.90 though 8.5.100. Users are recommended to upgrade to version 9.0.104, 10.1.40 or 11.0.6 which fix the issue.

References

►

URL

	Vendor	Product	Version
	Apache Software Foundation	Apache Tomcat	Version: 9.0.76 ≤ 9.0.102 Version: 10.1.10 ≤ 10.1.39 Version: 11.0.0-M2 ≤ 11.0.5 Version: 8.5.90 ≤ 8.5.100

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

rhsa-2025:11333

Vulnerability from csaf_redhat

CVE-2024-56337 (GCVE-0-2024-56337)

Vulnerability from cvelistv5

CVE-2025-31650 (GCVE-0-2025-31650)

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature