CVE-2010-0731: GNU Gnutls

High severity, CVSS 7.5. EPSS: 2.9% chance of exploitation in the next 30 days.

The gnutls_x509_crt_get_serial function in the GnuTLS library before 1.2.1, when running on big-endian, 64-bit platforms, calls the asn1_read_value with a pointer to the wrong data type and the wrong length value, which allows remote attackers to bypass the certificate revocation list (CRL) check and cause a stack-based buffer overflow via a crafted X.509 certificate, related to extraction of a serial number.

Affected products

• GNU Gnutls: up to and including 1.2.0; version 1.0.16 only; version 1.0.17 only; version 1.0.18 only; version 1.0.19 only; version 1.0.20 only; …

Published 2010-03-26. Last modified 2026-06-16.