X.org libXtst before 1.2.3 allows remote X servers to cause a denial of service (infinite loop) via a reply in the (1) XRecordStartOfData, (2) XRecordEndOfData, or (3) XRecordClientDied category without a client sequence and with attached data.
{ "ubuntu_priority": "low" }
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "libxtst-dev": "2:1.2.3-1", "libxtst6-dbgsym": "2:1.2.3-1", "libxtst6": "2:1.2.3-1", "libxtst6-udeb": "2:1.2.3-1", "libxtst-doc": "2:1.2.3-1", "libxtst6-udeb-dbgsym": "2:1.2.3-1" } ] }