CVE-2003-0689: Red Hat Enterprise Linux

High severity, CVSS 7.5. EPSS: 2.2% chance of exploitation in the next 30 days.

The getgrouplist function in GNU libc (glibc) 2.2.4 and earlier allows attackers to cause a denial of service (segmentation fault) and execute arbitrary code when a user is a member of a large number of groups, which can cause a buffer overflow.

Affected products

• Red Hat Enterprise Linux: version 2.1 only

Published 2003-10-20. Last modified 2026-06-16.