CVE-2020-14344

2020-08-0500:00:00

ubuntu.com

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

0.001 Low

EPSS

Percentile

19.1%

JSON

An integer overflow leading to a heap-buffer overflow was found in The X
Input Method (XIM) client was implemented in libX11 before version 1.6.10.
As per upstream this is security relevant when setuid programs call XIM
client functions while running with elevated privileges. No such programs
are shipped with Red Hat Enterprise Linux.

Bugs

<https://bugs.debian.org/966691>
<https://gitlab.freedesktop.org/xorg/lib/libx11/-/issues/116 (regression)>
<https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248549 (regression)>
<https://gitlab.freedesktop.org/xorg/lib/libx11/-/issues/117 (regression)>

Notes

Author	Note
seth-arnold	Debian triage notes the original fixes introduced regression
mdeslaur	a second regression was reported in bug 117

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlibx11< 2:1.6.4-3ubuntu0.3UNKNOWN
ubuntu20.04noarchlibx11< 2:1.6.9-2ubuntu1.1UNKNOWN
ubuntu14.04noarchlibx11< 2:1.6.2-1ubuntu2.1+esm1) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlibx11< 2:1.6.3-1ubuntu2.2UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	libx11	< 2:1.6.4-3ubuntu0.3	UNKNOWN
ubuntu	20.04	noarch	libx11	< 2:1.6.9-2ubuntu1.1	UNKNOWN
ubuntu	14.04	noarch	libx11	< 2:1.6.2-1ubuntu2.1+esm1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only	UNKNOWN
ubuntu	16.04	noarch	libx11	< 2:1.6.3-1ubuntu2.2	UNKNOWN