|Multiple vulnerabilities in Mozilla Firefox before 220.127.116.11,
Thunderbird before 18.104.22.168, and SeaMonkey before 1.0.3 allow remote
attackers to cause a denial of service (crash) and possibly execute
including (1) nsListControlFrame::FireMenuItemActiveEvent, (2) buffer
overflows in the string class in out-of-memory conditions, (3) table
row and column groups, (4) "anonymous box selectors outside of UA
stylesheets," (5) stale references to "removed nodes," and (6) running
the crypto.generateCRMFRequest callback on deleted context.