CVE-2023-4911

Vulnerability details

GNU C Library's dynamic loader ld.so contains a buffer overflow vulnerability when processing the GLIBC_TUNABLES environment variable, allowing a local attacker to execute code with elevated privileges.

Added to CISA KEV: 2023-11-21

Ransomware campaign use: Unknown

CISA due date: 2023-12-12

Defensive guidance from CISA

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.