Buffer overflow in libx11 - CVE-2013-1997

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Multiple buffer overflows in X.org libX11 1.5.99.901 (1.6 RC1) and earlier allow X servers to cause a denial of service (crash) and possibly execute arbitrary code via crafted length or index values to the (1) XAllocColorCells, (2) _XkbReadGetDeviceInfoReply, (3) _XkbReadGeomShapes, (4) _XkbReadGetGeometryReply, (5) _XkbReadKeySyms, (6) _XkbReadKeyActions, (7) _XkbReadKeyBehaviors, (8) _XkbReadModifierMap, (9) _XkbReadExplicitComponents, (10) _XkbReadVirtualModMap, (11) _XkbReadGetNamesReply, (12) _XkbReadGetMapReply, (13) _XimXGetReadData, (14) XListFonts, (15) XListExtensions, and (16) XGetFontPath functions.

Affected software

How to mitigate CVE-2013-1997

External References

• http://lists.fedoraproject.org/pipermail/package-announce/2013-May/106781.html
• http://www.debian.org/security/2013/dsa-2693
• http://www.openwall.com/lists/oss-security/2013/05/23/3
• http://www.ubuntu.com/usn/USN-1854-1
• http://www.x.org/wiki/Development/Security/Advisory-2013-05-23

Related Security Bulletins

• Buffer overflow in xorg.freedesktop libx11
• Buffer overflow in libx11 (Alpine package)
• Amazon Linux AMI update for libX11, libXcursor, libXfixes, libXi, libXrandr, libXrender, libXres, libXt, libXv, libXvMC, libXxf86dga, libXxf86vm, libdmx, xorg-x11-proto-devel
• Multiple vulnerabilities in HP-UX Running X Windows Libraries
• Buffer overflow in IBM BladeCenter Advanced Management Module (AMM)