CVE-2023-43787

2023-10-0300:00:00

ubuntu.com

libx11

integer overflow

xcreateimage

local user

arbitrary code

elevated privileges

libxpm

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

0.0004 Low

EPSS

Percentile

5.1%

JSON

A vulnerability was found in libX11 due to an integer overflow within the
XCreateImage() function. This flaw allows a local user to trigger an
integer overflow and execute arbitrary code with elevated privileges.

Notes

Author	Note
mdeslaur	issue is in libx11, but libxpm was also fixed to avoid passing invalid data

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlibx11< 2:1.6.4-3ubuntu0.4+esm2UNKNOWN
ubuntu20.04noarchlibx11< 2:1.6.9-2ubuntu1.6UNKNOWN
ubuntu22.04noarchlibx11< 2:1.7.5-1ubuntu0.3UNKNOWN
ubuntu23.04noarchlibx11< 2:1.8.4-2ubuntu0.3UNKNOWN
ubuntu23.10noarchlibx11< 2:1.8.6-1ubuntu1UNKNOWN
ubuntu24.04noarchlibx11< 2:1.8.6-1ubuntu1UNKNOWN
ubuntu14.04noarchlibx11< 2:1.6.2-1ubuntu2.1+esm5UNKNOWN
ubuntu16.04noarchlibx11< 2:1.6.3-1ubuntu2.2+esm4UNKNOWN
ubuntu18.04noarchlibxpm< 1:3.5.12-1ubuntu0.18.04.2+esm1UNKNOWN
ubuntu20.04noarchlibxpm< 1:3.5.12-1ubuntu0.20.04.2UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	libx11	< 2:1.6.4-3ubuntu0.4+esm2	UNKNOWN
ubuntu	20.04	noarch	libx11	< 2:1.6.9-2ubuntu1.6	UNKNOWN
ubuntu	22.04	noarch	libx11	< 2:1.7.5-1ubuntu0.3	UNKNOWN
ubuntu	23.04	noarch	libx11	< 2:1.8.4-2ubuntu0.3	UNKNOWN
ubuntu	23.10	noarch	libx11	< 2:1.8.6-1ubuntu1	UNKNOWN
ubuntu	24.04	noarch	libx11	< 2:1.8.6-1ubuntu1	UNKNOWN
ubuntu	14.04	noarch	libx11	< 2:1.6.2-1ubuntu2.1+esm5	UNKNOWN
ubuntu	16.04	noarch	libx11	< 2:1.6.3-1ubuntu2.2+esm4	UNKNOWN
ubuntu	18.04	noarch	libxpm	< 1:3.5.12-1ubuntu0.18.04.2+esm1	UNKNOWN
ubuntu	20.04	noarch	libxpm	< 1:3.5.12-1ubuntu0.20.04.2	UNKNOWN