Cyrus-SASL: Denial of service A NULL pointer dereference in Cyrus-SASL may allow remote attackers to cause a Denial of Service condition. cyrus-sasl 2013-09-01 2013-09-01 476764 remote 2.1.26-r3 2.1.26-r3

Cyrus-SASL is an implementation of the Simple Authentication and Security Layer.

In the GNU C Library (glibc) from version 2.17 onwards, the crypt() function call can return NULL when the salt violates specifications or the system is in FIPS-140 mode and a DES or MD5 hashed password is passed. When Cyrus-SASL’s authentication mechanisms call crypt(), a NULL may be returned.

A remote attacker could trigger this vulnerability to cause a Denial of Service condition.

There is no known workaround at this time.

All Cyrus-SASL users should upgrade to the latest version:

# emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/cyrus-sasl-2.1.26-r3" CVE-2013-4122 creffett creffett