rhsa-2024_2348
Vulnerability from csaf_redhat
Published
2024-04-30 09:48
Modified
2024-11-13 21:10
Summary
Red Hat Security Advisory: python-jinja2 security update

Notes

Topic
An update for python-jinja2 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. 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
The python-jinja2 package contains Jinja2, a template engine written in pure Python. Jinja2 provides a Django inspired non-XML syntax but supports inline expressions and an optional sandboxed environment. Security Fix(es): * jinja2: HTML attribute injection when passing user input as keys to xmlattr filter (CVE-2024-22195) 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. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.4 Release Notes linked from 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.


To clipboard 

{
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      "text": "Moderate"
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    "category": "csaf_security_advisory",
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    "distribution": {
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    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An update for python-jinja2 is now available for Red Hat Enterprise Linux 9.\n\nRed Hat Product Security has rated this update as having a security impact of Moderate. 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.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The python-jinja2 package contains Jinja2, a template engine written in pure Python. Jinja2 provides a Django inspired non-XML syntax but supports inline expressions and an optional sandboxed environment. \n\nSecurity Fix(es):\n\n* jinja2: HTML attribute injection when passing user input as keys to xmlattr filter (CVE-2024-22195)\n\nFor 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.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 9.4 Release Notes linked from the References section.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "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"
      }
    ],
    "publisher": {
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    ],
    "title": "Red Hat Security Advisory: python-jinja2 security update",
    "tracking": {
      "current_release_date": "2024-11-13T21:10:31+00:00",
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      "id": "RHSA-2024:2348",
      "initial_release_date": "2024-04-30T09:48:41+00:00",
      "revision_history": [
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          "number": "1",
          "summary": "Initial version"
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          "number": "2",
          "summary": "Last updated version"
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          "number": "3",
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      "status": "final",
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                "name": "Red Hat Enterprise Linux AppStream (v. 9)",
                "product": {
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                  "product_id": "AppStream-9.4.0.GA",
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          "product_id": "AppStream-9.4.0.GA:python-jinja2-0:2.11.3-5.el9.src"
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  "vulnerabilities": [
    {
      "cve": "CVE-2024-22195",
      "cwe": {
        "id": "CWE-79",
        "name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
      },
      "discovery_date": "2024-01-11T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2257854"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A  cross-site scripting (XSS) flaw was found in Jinja2 due to the xmlattr filter allowing keys with spaces, contrary to XML/HTML attribute standards. If an application accepts user-input keys and renders them for other users, attackers can inject additional attributes, potentially leading to XSS. This misuse of the xmlattr filter enables the injection of arbitrary HTML attributes, bypassing auto-escaping and potentially circumventing attribute validation checks.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "jinja2: HTML attribute injection when passing user input as keys to xmlattr filter",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The identified issue is classified as moderate due to a cross-site scripting (XSS) vulnerability in Jinja2. This flaw arises from the xmlattr filter, which permits keys with spaces, contrary to XML/HTML attribute standards. In scenarios where an application accepts user-input keys and renders them for other users, attackers can exploit this vulnerability to inject additional attributes, potentially resulting in XSS attacks. The misuse of the xmlattr filter facilitates the injection of arbitrary HTML attributes, allowing attackers to bypass auto-escaping mechanisms and potentially evade attribute validation checks, posing a moderate security risk.",
          "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": [
          "AppStream-9.4.0.GA:python-jinja2-0:2.11.3-5.el9.src",
          "AppStream-9.4.0.GA:python3-jinja2-0:2.11.3-5.el9.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2024-22195"
        },
        {
          "category": "external",
          "summary": "RHBZ#2257854",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2257854"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2024-22195",
          "url": "https://www.cve.org/CVERecord?id=CVE-2024-22195"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-22195",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-22195"
        },
        {
          "category": "external",
          "summary": "https://github.com/pallets/jinja/releases/tag/3.1.3",
          "url": "https://github.com/pallets/jinja/releases/tag/3.1.3"
        },
        {
          "category": "external",
          "summary": "https://github.com/pallets/jinja/security/advisories/GHSA-h5c8-rqwp-cp95",
          "url": "https://github.com/pallets/jinja/security/advisories/GHSA-h5c8-rqwp-cp95"
        }
      ],
      "release_date": "2024-01-11T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2024-04-30T09:48:41+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\n\nFor the update to take effect, all applications using Jinja2 must be restarted.",
          "product_ids": [
            "AppStream-9.4.0.GA:python-jinja2-0:2.11.3-5.el9.src",
            "AppStream-9.4.0.GA:python3-jinja2-0:2.11.3-5.el9.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2024:2348"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options don\u0027t meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
          "product_ids": [
            "AppStream-9.4.0.GA:python-jinja2-0:2.11.3-5.el9.src",
            "AppStream-9.4.0.GA:python3-jinja2-0:2.11.3-5.el9.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "AppStream-9.4.0.GA:python-jinja2-0:2.11.3-5.el9.src",
            "AppStream-9.4.0.GA:python3-jinja2-0:2.11.3-5.el9.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "jinja2: HTML attribute injection when passing user input as keys to xmlattr filter"
    }
  ]
}


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