NULL Pointer Dereference Affecting mod_http2 package, versions <0:1.15.7-5.module+el8.6.0+13996+01710940


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.19% (57th percentile)

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  • Snyk IDSNYK-CENTOS8-MODHTTP2-1964943
  • published17 Aug 2021
  • disclosed5 Aug 2021

Introduced: 5 Aug 2021

CVE-2021-33193  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Centos:8 mod_http2 to version 0:1.15.7-5.module+el8.6.0+13996+01710940 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mod_http2 package and not the mod_http2 package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48.

References

CVSS Scores

version 3.1