Integer overflow in the ProcDRI2GetBuffers function in the DRI2 extension in X.Org Server (aka xserver and xorg-server) 1.7.0 through 1.16.x before 1.16.3 allows remote authenticated users to cause a denial of service (crash) or possibly execute arbitrary code via a crafted request, which triggers an out-of-bounds read or write.
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.debian.org/security/2014/dsa-3095 | third party advisory vendor advisory |
| http://www.x.org/wiki/Development/Security/Advisory-2014-12-09/ | vendor advisory patch |
| http://advisories.mageia.org/MGASA-2014-0532.html | third party advisory |
| https://security.gentoo.org/glsa/201504-06 | vendor advisory |
| http://www.securityfocus.com/bid/71601 | vdb entry |
| http://secunia.com/advisories/62292 | permissions required third party advisory |
| http://www.mandriva.com/security/advisories?name=MDVSA-2015:119 | vendor advisory broken link |
| http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html | third party advisory |
| http://secunia.com/advisories/61947 | third party advisory |