CVE-2005-3590: GNU Glibc

Critical severity, CVSS 9.8. EPSS: 2.1% chance of exploitation in the next 30 days.

The getgrouplist function in the GNU C library (glibc) before version 2.3.5, when invoked with a zero argument, writes to the passed pointer even if the specified array size is zero, leading to a buffer overflow and potentially allowing attackers to corrupt memory.

Affected products

• GNU Glibc: before 2.3.5 (fixed in 2.3.5)

Published 2019-04-10. Last modified 2026-06-16.