Debian Security Advisory

DSA-4591-1 cyrus-sasl2 -- security update

Date Reported:
20 Dec 2019
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 947043.
In Mitre's CVE dictionary: CVE-2019-19906.
More information:

Stephan Zeisberg reported an out-of-bounds write vulnerability in the _sasl_add_string() function in cyrus-sasl2, a library implementing the Simple Authentication and Security Layer. A remote attacker can take advantage of this issue to cause denial-of-service conditions for applications using the library.

For the oldstable distribution (stretch), this problem has been fixed in version 2.1.27~101-g0780600+dfsg-3+deb9u1.

For the stable distribution (buster), this problem has been fixed in version 2.1.27+dfsg-1+deb10u1.

We recommend that you upgrade your cyrus-sasl2 packages.

For the detailed security status of cyrus-sasl2 please refer to its security tracker page at: