Off-by-one Error Affecting glibc package, versions <0:2.28-164.el8_5.3
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Test your applications- Snyk ID SNYK-CENTOS8-GLIBC-2336773
- published 12 Jan 2022
- disclosed 11 Jan 2022
Introduced: 11 Jan 2022
CVE-2021-3999 Open this link in a new tabHow to fix?
Upgrade Centos:8 glibc to version 0:2.28-164.el8_5.3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Centos:8.
See How to fix? for Centos:8 relevant fixed versions and status.
A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system.