rhsa-2019_3964
Vulnerability from csaf_redhat
Published
2019-11-26 11:56
Modified
2024-11-05 21:37
Summary
Red Hat Security Advisory: python-jinja2 security update

Notes

Topic
An update for python-jinja2 is now available for Red Hat Enterprise Linux 7.5 Extended Update Support. 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
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): * python-jinja2: Sandbox escape due to information disclosure via str.format (CVE-2016-10745) 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.
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": "An update for python-jinja2 is now available for Red Hat Enterprise Linux 7.5 Extended Update Support.\n\nRed 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.",
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        "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* python-jinja2: Sandbox escape due to information disclosure via str.format (CVE-2016-10745)\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.",
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  "vulnerabilities": [
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      "cwe": {
        "id": "CWE-138",
        "name": "Improper Neutralization of Special Elements"
      },
      "discovery_date": "2019-04-09T00:00:00+00:00",
      "ids": [
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          "text": "1698345"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Pallets Jinja prior to version 2.8.1 allows sandbox escape. Python\u0027s string format method added to strings can be used to discover potentially dangerous values including configuration values. The highest threat from this vulnerability is to data confidentiality and integrity as well as system integrity.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "python-jinja2: Sandbox escape due to information disclosure via str.format",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "* Red Hat OpenStack Platform is not affected by this flaw. All supported versions ship python-jinja2 packages which have already been fixed.\n* Red Hat Satellite 6 will receive fixes through the underlying Red Hat Enterprise Linux, so it will not issue updates to its own affected package.\n* Red Hat Update Infrastructure is not affected because its packaged versions of python-jinja2 do not use the Sandbox feature, nor does it allow untrusted jinja2 templates.\n* Red Hat Virtualization Management Appliance includes python-jinja2 as a dependency of ovirt-engine-backend, which only uses it with controlled format strings that are not exploitable.\n* Red Hat Ceph Storage 2 and 3 are affected by this flaw as it contains the vulnerable code and will get security fixes for python-jinja2 from Red Hat Enterprise Linux 7 channel.",
          "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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          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2016-10745"
        },
        {
          "category": "external",
          "summary": "RHBZ#1698345",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1698345"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2016-10745",
          "url": "https://www.cve.org/CVERecord?id=CVE-2016-10745"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2016-10745",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-10745"
        },
        {
          "category": "external",
          "summary": "https://palletsprojects.com/blog/jinja-281-released/",
          "url": "https://palletsprojects.com/blog/jinja-281-released/"
        }
      ],
      "release_date": "2016-12-29T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2019-11-26T11:56:29+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.",
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            "7Server-7.5.EUS:python-jinja2-0:2.7.2-3.el7_5.src"
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          "restart_required": {
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          "url": "https://access.redhat.com/errata/RHSA-2019:3964"
        },
        {
          "category": "workaround",
          "details": "If you don\u0027t want or you cannot upgrade Jinja2, you can override the `is_safe_attribute` method on the sandbox and explicitly disallow all `format` attributes on strings.",
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      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.0,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
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            "7ComputeNode-optional-7.5.EUS:python-jinja2-0:2.7.2-3.el7_5.src",
            "7Server-7.5.EUS:python-jinja2-0:2.7.2-3.el7_5.noarch",
            "7Server-7.5.EUS:python-jinja2-0:2.7.2-3.el7_5.src"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "python-jinja2: Sandbox escape due to information disclosure via str.format"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
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