CVE-2021-3999

Name of the Vulnerable Software and Affected Versions glibc (affected versions not specified)

Description A flaw was found in glibc, specifically an off-by-one buffer overflow and underflow in the getcwd() function, which 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.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.