Buffer overflow in Apache HTTP Server - CVE-2021-20325

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Main Vulnerability Database Vulnerabilities #VU64068

Buffer overflow in Apache HTTP Server - CVE-2021-20325

Published: June 8, 2022


Vulnerability identifier: #VU64068
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-20325
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to missing fixes for CVE-2021-40438 and CVE-2021-26691 in the versions of httpd. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.


Affected software

Apache HTTP Server
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
IBM DS8000 Hardware Management Console

How to mitigate CVE-2021-20325

Install updates from vendor's website.

Apache HTTP Server - addressed in versions 2.4.47, 2.4.49
IBM DS8000 Hardware Management Console - update to 89.30.68.0

External References

Related Security Bulletins