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CVE-2016-7943

Published: 13 December 2016

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.

Priority

Low

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
libx11
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
artful Ignored
(end of life)
bionic
Released (2:1.6.4-1)
trusty
Released (2:1.6.2-1ubuntu2.1)
upstream
Released (1.6.4)
xenial
Released (2:1.6.3-1ubuntu2.1)
yakkety Ignored
(end of life)
zesty Ignored
(end of life)
Patches:
upstream: https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=8c29f1607a31dac0911e45a0dd3d74173822b3c9

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H