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CVE-2024-34064 Affecting python3-jinja2 package, versions <0:2.11.3-6.el9

Severity

 Recommended
medium

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    0.04% (12th percentile)

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  • Snyk ID SNYK-ALMALINUX9-PYTHON3JINJA2-8383513
  • published 18 Nov 2024
  • disclosed 11 Jun 2024
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Introduced: 11 Jun 2024

CVE-2024-34064 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:9 python3-jinja2 to version 0:2.11.3-6.el9 or higher.
This issue was patched in ALSA-2024:9150.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-jinja2 package and not the python3-jinja2 package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

Jinja is an extensible templating engine. The xmlattr filter in affected versions of Jinja accepts keys containing non-attribute characters. XML/HTML attributes cannot contain spaces, /, &gt;, or =, as each would then be interpreted as starting a separate attribute. If an application accepts keys (as opposed to only values) as user input, and renders these in pages that other users see as well, an attacker could use this to inject other attributes and perform XSS. The fix for CVE-2024-22195 only addressed spaces but not other characters. Accepting keys as user input is now explicitly considered an unintended use case of the xmlattr filter, and code that does so without otherwise validating the input should be flagged as insecure, regardless of Jinja version. Accepting values as user input continues to be safe. This vulnerability is fixed in 3.1.4.

References

CVSS Scores

version 3.1
Expand this section

Red Hat

5.4 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    None
Expand this section

SUSE

6.1 medium