Out-of-bounds Write Affecting httpd:2.4/mod_session package, versions <0:2.4.37-43.module+el8.5.0+14370+51c6d843.2


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.56% (79th percentile)

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  • Snyk IDSNYK-RHEL8-HTTPD-4208222
  • published26 Sept 2021
  • disclosed16 Sept 2021

Introduced: 16 Sep 2021

CVE-2021-39275  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade RHEL:8 httpd:2.4/mod_session to version 0:2.4.37-43.module+el8.5.0+14370+51c6d843.2 or higher.
This issue was patched in RHSA-2022:0891.

NVD Description

Note: Versions mentioned in the description apply only to the upstream httpd:2.4/mod_session package and not the httpd:2.4/mod_session package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

ap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules pass untrusted data to these functions, but third-party / external modules may. This issue affects Apache HTTP Server 2.4.48 and earlier.

References

CVSS Scores

version 3.1