CVE-2016-7943

CRITICAL

9.8

CVSS Severity Score

EPSS Score0.0410%

EPSS Percentile35.97th

PublishedDec 13, 2016

Last ModifiedMay 6, 2026

Vulnerability 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 Platforms (CPE)

💻

Fedoraproject

Fedora

= 25

📦

X.org

Libx11

<= 1.6.3

References & Advisories

🔗 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/93362

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

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

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

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

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

Vulnerability Description

Affected Platforms (CPE)

Fedora

Libx11

References & Advisories

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