CVE-2008-2377: GNU Gnutls

High severity, CVSS 7.6. EPSS: 5.5% chance of exploitation in the next 30 days.

Use-after-free vulnerability in the _gnutls_handshake_hash_buffers_clear function in lib/gnutls_handshake.c in libgnutls in GnuTLS 2.3.5 through 2.4.0 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via TLS transmission of data that is improperly used when the peer calls gnutls_handshake within a normal session, leading to attempted access to a deallocated libgcrypt handle.

Affected products

• GNU Gnutls: version 2.3.5 only; version 2.3.6 only; version 2.3.7 only; version 2.3.8 only; version 2.3.9 only; version 2.4.0 only

Published 2008-08-08. Last modified 2026-06-16.