CVE Database


Impact: Important
Public: 2014-05-30
CWE: CWE-130->CWE-119
Bugzilla: 1101932: CVE-2014-3466 gnutls: insufficient session id length check in _gnutls_read_server_hello (GNUTLS-SA-2014-3)


A flaw was found in the way GnuTLS parsed session IDs from ServerHello messages of the TLS/SSL handshake. A malicious server could use this flaw to send an excessively long session ID value, which would trigger a buffer overflow in a connecting TLS/SSL client application using GnuTLS, causing the client application to crash or, possibly, execute arbitrary code.

Find out more about CVE-2014-3466 from the MITRE CVE dictionary and NIST NVD.

CVSS v2 metrics

Base Score: 6.8
Base Metrics: AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector: Network
Access Complexity: Medium
Authentication: None
Confidentiality Impact: Partial
Integrity Impact: Partial
Availability Impact: Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date
RHEV Hypervisor for RHEL-6 (rhev-hypervisor6) RHSA-2014:0815 June 30, 2014
Red Hat Enterprise Linux version 5 (gnutls) RHSA-2014:0594 June 03, 2014
Red Hat Enterprise Linux version 6 (gnutls) RHSA-2014:0595 June 03, 2014
Red Hat Enterprise Linux version 7 (gnutls) RHSA-2014:0684 June 10, 2014

External References


Red Hat would like to thank GnuTLS upstream for reporting this issue. Upstream acknowledges Joonas Kuorilehto of Codenomicon as the original reporter.

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For clarification or corrections please contact the Red Hat Security Response Team.