CVE-2013-4122: Cmu Cyrus-Sasl

Medium severity, CVSS 4.3. EPSS: 3.6% chance of exploitation in the next 30 days.

Cyrus SASL 2.1.23, 2.1.26, and earlier does not properly handle when a NULL value is returned upon an error by the crypt function as implemented in glibc 2.17 and later, which allows remote attackers to cause a denial of service (thread crash and consumption) via (1) an invalid salt or, when FIPS-140 is enabled, a (2) DES or (3) MD5 encrypted password, which triggers a NULL pointer dereference.

Affected products

• Cmu Cyrus-Sasl: up to and including 2.1.26; version 1.5.28 only; version 2.1.19 only; version 2.1.20 only; version 2.1.21 only; version 2.1.22 only; …

Published 2013-10-27. Last modified 2026-06-16.