rhsa-2014:0748
Vulnerability from csaf_redhat
Published
2014-06-11 17:13
Modified
2025-08-02 00:11
Summary
Red Hat Security Advisory: python33-python-jinja2 and python27-python-jinja2 security update

Notes

Topic
Updated python33-python-jinja2 and python27-python-jinja2 packages that fix one security issue are now available for Red Hat Software Collections 1. The Red Hat Security Response Team has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
Details
Jinja2 is a template engine written in pure Python. It provides a Django-inspired, non-XML syntax but supports inline expressions and an optional sandboxed environment. It was discovered that Jinja2 did not properly handle bytecode cache files stored in the system's temporary directory. A local attacker could use this flaw to alter the output of an application using Jinja2 and FileSystemBytecodeCache, and potentially execute arbitrary code with the privileges of that application. (CVE-2014-1402) All Jinja2 users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. For the update to take effect, all applications using Jinja2 must be restarted.
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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        "full_product_name": {
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  "vulnerabilities": [
    {
      "cve": "CVE-2014-1402",
      "cwe": {
        "id": "CWE-377",
        "name": "Insecure Temporary File"
      },
      "discovery_date": "2014-01-10T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1051421"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "The default configuration for bccache.FileSystemBytecodeCache in Jinja2 before 2.7.2 does not properly create temporary files, which allows local users to gain privileges via a crafted .cache file with a name starting with __jinja2_ in /tmp.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "python-jinja2: FileSystemBytecodeCache insecure cache temporary file use",
          "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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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2014-1402"
        },
        {
          "category": "external",
          "summary": "RHBZ#1051421",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1051421"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2014-1402",
          "url": "https://www.cve.org/CVERecord?id=CVE-2014-1402"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2014-1402",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2014-1402"
        }
      ],
      "release_date": "2014-01-09T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2014-06-11T17:13:22+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nThis update is available via the Red Hat Network. Details on how to use the\nRed Hat Network to apply this update are available at\nhttps://access.redhat.com/site/articles/11258",
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      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "python-jinja2: FileSystemBytecodeCache insecure cache temporary file use"
    }
  ]
}


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