CVE-2016-7942 Information

Description

The XGetImage function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving image type and geometry which triggers out-of-bounds read operations.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.openwall.com/lists/oss-security/2016/10/04/2 http://www.openwall.com/lists/oss-security/2016/10/04/4 http://www.securityfocus.com/bid/93363 http://www.securitytracker.com/id/1036945 https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=8ea762f94f4c942d898fdeb590a1630c83235c17 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GMCVDXMFPXR7QGMKDG22WPPJCXH2X3L7/ https://lists.x.org/archives/xorg-announce/2016-October/002720.html https://security.gentoo.org/glsa/201704-03 https://usn.ubuntu.com/3758-1/ https://usn.ubuntu.com/3758-2/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8