mozilla-firefox - programming error

Martijn Wargers and Nick Mott described crashes of Mozilla due to the
use of a deleted controller context. In theory this could be abused to
execute malicious code. Since Mozilla and Firefox share the same
codebase, Firefox may be vulnerable as well.

For the stable distribution (sarge) this problem has been fixed in
version 1.0.4-2sarge7.

For the unstable distribution (sid) this problem has been fixed in
version 1.5.dfsg+1.5.0.3-1.

We recommend that you upgrade your Mozilla Firefox packages.