libx11 vulnerabilities

2023-10-0300:00:00

ubuntu.com

ubuntu

x11 client-side library

remote attacker

denial of service

arbitrary code

cve-2023-43785

cve-2023-43786

cve-2023-43787

xpm image files

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.9 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

JSON

Releases

Ubuntu 23.04
Ubuntu 22.04 LTS
Ubuntu 20.04 LTS

Packages

libx11 - X11 client-side library

Details

Gregory James Duck discovered that libx11 incorrectly handled certain
keyboard symbols. If a user were tricked into connecting to a malicious X
server, a remote attacker could use this issue to cause libx11 to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2023-43785)

Yair Mizrahi discovered that libx11 incorrectly handled certain malformed
XPM image files. If a user were tricked into opening a specially crafted
XPM image file, a remote attacker could possibly use this issue to consume
memory, leading to a denial of service. (CVE-2023-43786)

Yair Mizrahi discovered that libx11 incorrectly handled certain malformed
XPM image files. If a user were tricked into opening a specially crafted
XPM image file, a remote attacker could use this issue to cause libx11 to
crash, leading to a denial of service, or possibly execute arbitrary code.
(CVE-2023-43787)

OSVersionArchitecturePackageVersionFilename
Ubuntu23.04noarchlibx11-6< 2:1.8.4-2ubuntu0.3UNKNOWN
Ubuntu23.04noarchlibx11-6-dbgsym< 2:1.8.4-2ubuntu0.3UNKNOWN
Ubuntu23.04noarchlibx11-data< 2:1.8.4-2ubuntu0.3UNKNOWN
Ubuntu23.04noarchlibx11-dev< 2:1.8.4-2ubuntu0.3UNKNOWN
Ubuntu23.04noarchlibx11-doc< 2:1.8.4-2ubuntu0.3UNKNOWN
Ubuntu23.04noarchlibx11-xcb-dev< 2:1.8.4-2ubuntu0.3UNKNOWN
Ubuntu23.04noarchlibx11-xcb1< 2:1.8.4-2ubuntu0.3UNKNOWN
Ubuntu23.04noarchlibx11-xcb1-dbgsym< 2:1.8.4-2ubuntu0.3UNKNOWN
Ubuntu22.04noarchlibx11-6< 2:1.7.5-1ubuntu0.3UNKNOWN
Ubuntu22.04noarchlibx11-6-dbgsym< 2:1.7.5-1ubuntu0.3UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Ubuntu	23.04	noarch	libx11-6	< 2:1.8.4-2ubuntu0.3	UNKNOWN
Ubuntu	23.04	noarch	libx11-6-dbgsym	< 2:1.8.4-2ubuntu0.3	UNKNOWN
Ubuntu	23.04	noarch	libx11-data	< 2:1.8.4-2ubuntu0.3	UNKNOWN
Ubuntu	23.04	noarch	libx11-dev	< 2:1.8.4-2ubuntu0.3	UNKNOWN
Ubuntu	23.04	noarch	libx11-doc	< 2:1.8.4-2ubuntu0.3	UNKNOWN
Ubuntu	23.04	noarch	libx11-xcb-dev	< 2:1.8.4-2ubuntu0.3	UNKNOWN
Ubuntu	23.04	noarch	libx11-xcb1	< 2:1.8.4-2ubuntu0.3	UNKNOWN
Ubuntu	23.04	noarch	libx11-xcb1-dbgsym	< 2:1.8.4-2ubuntu0.3	UNKNOWN
Ubuntu	22.04	noarch	libx11-6	< 2:1.7.5-1ubuntu0.3	UNKNOWN
Ubuntu	22.04	noarch	libx11-6-dbgsym	< 2:1.7.5-1ubuntu0.3	UNKNOWN