CVE-2023-43786

2023-10-0300:00:00

ubuntu.com

vulnerability

libx11

denial of service

infinite loop

putsubimage()

local user

system resources

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%

JSON

A vulnerability was found in libX11 due to an infinite loop within the
PutSubImage() function. This flaw allows a local user to consume all
available system resources and cause a denial of service condition.

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