CVE-2014-3466

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 11.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2014-06-03 · updated 2026-06-17
Weakness: CWE-119

Description

Buffer overflow in the read_server_hello function in lib/gnutls_handshake.c in GnuTLS before 3.1.25, 3.2.x before 3.2.15, and 3.3.x before 3.3.4 allows remote servers to cause a denial of service (memory corruption) or possibly execute arbitrary code via a long session id in a ServerHello message.

Affected products

[UNKNOWN] gnutls: through 3.1.24; 3.3.0, 3.3.0-pre0, 3.3.1, 3.3.2, 3.3.3, 3.1.0 (+40)

References

http://linux.oracle.com/errata/ELSA-2014-0594.html
http://linux.oracle.com/errata/ELSA-2014-0595.html
http://lists.opensuse.org/opensuse-security-announce/2014-06/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2014-06/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2014-06/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2014-06/msg00015.html
http://radare.today/technical-analysis-of-the-gnutls-hello-vulnerability/
http://rhn.redhat.com/errata/RHSA-2014-0594.html
http://rhn.redhat.com/errata/RHSA-2014-0595.html
http://rhn.redhat.com/errata/RHSA-2014-0684.html
http://rhn.redhat.com/errata/RHSA-2014-0815.html
http://secunia.com/advisories/58340

Get alerted when CVE-2014-3466 or the next vulnerability affects your stack