Gentoo Linux Security Advisory [ERRATA UPDATE] GLSA 200801-09:03 – The previous version of the X.Org X server (1.3.0.0-r4) did not properly address the integer overflow vulnerability in the MIT-SHM extension (CVE-2007-6429). It failed to check on Pixmaps of certain bit depths. Versions less than 1.3.0.0-r5 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/64393/glsa-200801-09-03.txt
Source: https://packetstormsecurity.com/files/64393/Gentoo-Linux-Security-Advisory-200801-9.html