Integer overflow in the WebSocketChannel class in the WebSockets subsystem in Mozilla Firefox before 48.0 and Firefox ESR < 45.4 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted packets that trigger incorrect buffer-resize operations during buffering.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| http://www.securitytracker.com/id/1036508 | vdb entry |
| http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html | |
| https://www.mozilla.org/security/advisories/mfsa2016-86/ | |
| http://www.ubuntu.com/usn/USN-3044-1 | vendor advisory |
| http://www.debian.org/security/2016/dsa-3674 | vendor advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1287266 | issue tracking permissions required |
| http://www.securityfocus.com/bid/92260 | vdb entry |
| https://security.gentoo.org/glsa/201701-15 | vendor advisory |
| http://rhn.redhat.com/errata/RHSA-2016-1912.html | vendor advisory |
| http://www.mozilla.org/security/announce/2016/mfsa2016-75.html | vendor advisory |
| http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00004.html | vendor advisory |
| http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00029.html | vendor advisory |