Joined: 12 May 2004
|Posted: Sun Jul 12, 2009 10:26 pm Post subject: [ GLSA 200907-09 ] Cyrus-SASL: Execution of arbitrary code
|Gentoo Linux Security Advisory
Title: Cyrus-SASL: Execution of arbitrary code (GLSA 200907-09)
Date: July 12, 2009
A buffer overflow in Cyrus-SASL might allow for the execution of arbitrary code in applications or daemons that authenticate using SASL.
Cyrus-SASL is an implementation of the Simple Authentication and Security Layer.
Vulnerable: < 2.1.23
Unaffected: >= 2.1.23
Architectures: All supported architectures
James Ralston reported that in certain situations, Cyrus-SASL does not properly terminate strings which can result in buffer overflows when performing Base64 encoding.
A remote unauthenticated user might send specially crafted packets to a daemon using Cyrus-SASL, possibly resulting in the execution of arbitrary code with the privileges of the user running the daemon or a Denial of Service.
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-2.1.23"