Multiple "memory alignment errors" in libgadu, as used in ekg before 1.6rc2, Gaim before 1.5.0, and other packages, allows remote attackers to cause a denial of service (bus error) on certain architectures such as SPARC via an incoming message.
http://www.securityfocus.com/bid/24600
http://www.securityfocus.com/archive/1/426078/100/0/threaded
http://www.redhat.com/support/errata/RHSA-2005-627.html
http://www.debian.org/security/2007/dsa-1318
http://www.debian.org/security/2005/dsa-813
http://secunia.com/advisories/16265
http://marc.info/?l=bugtraq&m=112198499417250&w=2
http://gaim.sourceforge.net/security/index.php?id=20