rhsa-2024_2727
Vulnerability from csaf_redhat
Published
2024-05-22 20:41
Modified
2024-12-12 09:53
Summary
Red Hat Security Advisory: Red Hat OpenStack Platform 17.1 (python-gunicorn) security update

Notes

Topic
An update for python-gunicorn is now available for Red Hat OpenStack Platform 17.1 (Wallaby). 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
Gunicorn (Green Unicorn) is a Python WSGI HTTP server for UNIX Security Fix(es): * HTTP Request Smuggling due to improper validation of Transfer-Encoding headers (CVE-2024-1135) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section.
Terms of Use
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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    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An update for python-gunicorn is now available for Red Hat OpenStack\nPlatform 17.1 (Wallaby).\n\nRed Hat Product Security has rated this update as having a security impact\nof Important. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available for each vulnerability\nfrom the CVE link(s) in the References section.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Gunicorn (Green Unicorn) is a Python WSGI HTTP server for UNIX\n\nSecurity Fix(es):\n\n* HTTP Request Smuggling due to improper validation of Transfer-Encoding\nheaders (CVE-2024-1135)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage listed in the References section.",
        "title": "Details"
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      {
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        "text": "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.",
        "title": "Terms of Use"
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    "title": "Red Hat Security Advisory: Red Hat OpenStack Platform 17.1 (python-gunicorn) security update",
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      "revision_history": [
        {
          "date": "2024-05-22T20:41:38+00:00",
          "number": "1",
          "summary": "Initial version"
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  "vulnerabilities": [
    {
      "cve": "CVE-2024-1135",
      "cwe": {
        "id": "CWE-444",
        "name": "Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027)"
      },
      "discovery_date": "2024-04-16T00:00:00+00:00",
      "ids": [
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          "text": "2275280"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An HTTP Request Smuggling vulnerability was found in Gunicorn. By crafting requests with conflicting Transfer-Encoding headers, attackers can bypass security restrictions and access restricted endpoints. This issue is due to Gunicorn\u0027s handling of Transfer-Encoding headers, where it incorrectly processes requests with multiple, conflicting Transfer-Encoding headers, treating them as chunked regardless of the final encoding specified. This vulnerability allows for a range of attacks, including cache poisoning, session manipulation, and data exposure.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "python-gunicorn: HTTP Request Smuggling due to improper validation of Transfer-Encoding headers",
          "title": "Vulnerability summary"
        },
        {
          "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": {
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          "summary": "RHBZ#2275280",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2275280"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2024-1135",
          "url": "https://www.cve.org/CVERecord?id=CVE-2024-1135"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-1135",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-1135"
        },
        {
          "category": "external",
          "summary": "https://github.com/advisories/GHSA-w3h3-4rj7-4ph4",
          "url": "https://github.com/advisories/GHSA-w3h3-4rj7-4ph4"
        },
        {
          "category": "external",
          "summary": "https://github.com/benoitc/gunicorn/commit/ac29c9b0a758d21f1e0fb3b3457239e523fa9f1d",
          "url": "https://github.com/benoitc/gunicorn/commit/ac29c9b0a758d21f1e0fb3b3457239e523fa9f1d"
        },
        {
          "category": "external",
          "summary": "https://huntr.com/bounties/22158e34-cfd5-41ad-97e0-a780773d96c1",
          "url": "https://huntr.com/bounties/22158e34-cfd5-41ad-97e0-a780773d96c1"
        }
      ],
      "release_date": "2024-04-15T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2024-05-22T20:41:38+00:00",
          "details": "For details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "9Base-RHOS-17.1:python-gunicorn-0:20.0.4-7.el9ost.src",
            "9Base-RHOS-17.1:python3-gunicorn-0:20.0.4-7.el9ost.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2024:2727"
        },
        {
          "category": "workaround",
          "details": "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.",
          "product_ids": [
            "9Base-RHOS-17.1:python-gunicorn-0:20.0.4-7.el9ost.src",
            "9Base-RHOS-17.1:python3-gunicorn-0:20.0.4-7.el9ost.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.0"
          },
          "products": [
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "python-gunicorn: HTTP Request Smuggling due to improper validation of Transfer-Encoding headers"
    }
  ]
}


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