CVE-2023-43786: Libx11: stack exhaustion from infinite recursion in putsubimage()

Medium severity · published Oct 10, 2023

CVE-2023-43786

Libx11: stack exhaustion from infinite recursion in putsubimage()

5.5

CVSS

0.5%

EPSS

On KEV

Description

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.

CVSS vector

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

Attack vector

Local

Complexity

Low

Privileges

Low

User interaction

None

Confidentiality

None

Integrity

None

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.5% · higher than 41% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Red Hat Enterprise Linux 6 · Red Hat

All versions, or not specified · source: vendor

Red Hat Enterprise Linux 7 · Red Hat

All versions, or not specified · source: vendor

Red Hat Enterprise Linux 8 · Red Hat

All versions, or not specified · source: vendor

Red Hat Enterprise Linux 9 · Red Hat

All versions, or not specified · source: vendor

Enterprise Linux · Redhat

8.0; 9.0 · source: NVD

Fedora · Fedoraproject

38 · source: NVD

Libx11 · X.org

before 1.8.7 · source: NVD

Affected product

Red Hat Enterprise Linux 6

Red Hat

All Red Hat Enterprise Linux 6 CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2023-43786

CVE.org

https://www.cve.org/CVERecord?id=CVE-2023-43786

access.redhat.com

https://access.redhat.com/errata/RHSA-2024:2145

access.redhat.com

https://access.redhat.com/errata/RHSA-2024:2973

Third Party Advisory

https://access.redhat.com/security/cve/CVE-2023-43786

Issue Tracking

https://bugzilla.redhat.com/show_bug.cgi?id=2242253

www.openwall.com

http://www.openwall.com/lists/oss-security/2024/01/24/9

lists.debian.org

https://lists.debian.org/debian-lts-announce/2023/10/msg00005.html