NULL Pointer Dereference Affecting httpd:2.4/mod_session package, versions <0:2.4.37-47.module+el8.6.0+15654+427eba2e.2


Severity

Recommended
low

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.62% (80th percentile)

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  • Snyk IDSNYK-RHEL8-HTTPD-4328116
  • published1 Nov 2021
  • disclosed4 Jun 2021

Introduced: 4 Jun 2021

CVE-2020-13950  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade RHEL:8 httpd:2.4/mod_session to version 0:2.4.37-47.module+el8.6.0+15654+427eba2e.2 or higher.
This issue was patched in RHSA-2022:5163.

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.

Apache HTTP Server versions 2.4.41 to 2.4.46 mod_proxy_http can be made to crash (NULL pointer dereference) with specially crafted requests using both Content-Length and Transfer-Encoding headers, leading to a Denial of Service

References

CVSS Scores

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