CVE-2014-5355: Mit Kerberos 5

Medium severity, CVSS 5.0. EPSS: 4.6% chance of exploitation in the next 30 days.

MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.

Affected products

• Mit Kerberos 5: version 1.1 only; version 1.2 only; version 1.2.1 only; version 1.2.2 only; version 1.2.3 only; version 1.2.4 only; …

Published 2015-02-20. Last modified 2026-06-17.