CVE-2016-7943

Published: Dec 13, 2016Modified: May 6, 2026

9.8

Vector

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

Exploitability: 3.9 / Impact: 5.9

Source: NVD

Description

The XListFonts function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving length fields, which trigger out-of-bounds write operations.

Affected (2)

Products: Fedoraproject: Fedora · X.org: Libx11

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 25

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
X.org Libx11	Up to 1.6.3

Related CWEs

CWE-787

Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

References (20)

http://www.openwall.com/lists/oss-security/2016/10/04/2

Source: security@opentext.com

http://www.openwall.com/lists/oss-security/2016/10/04/4

Source: security@opentext.com

http://www.securityfocus.com/bid/93362

Source: security@opentext.com

http://www.securitytracker.com/id/1036945

Source: security@opentext.com

https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=8c29f1607a31dac0911e45a0dd3d74173822b3c9

Source: security@opentext.com

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GMCVDXMFPXR7QGMKDG22WPPJCXH2X3L7/

Source: security@opentext.com

https://lists.x.org/archives/xorg-announce/2016-October/002720.html

Source: security@opentext.com

https://security.gentoo.org/glsa/201704-03

Source: security@opentext.com

https://usn.ubuntu.com/3758-1/

Source: security@opentext.com

https://usn.ubuntu.com/3758-2/

Source: security@opentext.com

http://www.openwall.com/lists/oss-security/2016/10/04/2