CVE-2014-4343: Debian Linux

High severity, CVSS 7.6. EPSS: 6.4% chance of exploitation in the next 30 days.

Double free vulnerability in the init_ctx_reselect function in the SPNEGO initiator in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.10.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via network traffic that appears to come from an intended acceptor, but specifies a security mechanism different from the one proposed by the initiator.

Affected products

• Debian Debian Linux: version 7.0 only
• Mit Kerberos 5: version 1.10 only; version 1.10.1 only; version 1.10.2 only; version 1.10.3 only; version 1.10.4 only; version 1.11 only; …
• Red Hat Enterprise Linux Desktop: version 7.0 only
• Red Hat Enterprise Linux Hpc Node: version 7.0 only
• Red Hat Enterprise Linux Server: version 7.0 only
• Red Hat Enterprise Linux Workstation: version 7.0 only

Published 2014-08-14. Last modified 2026-06-17.