CVE-2021-45944: Ghostscript GhostPDL 9.50 through 9.53.3 has a use-after-free in sampled_data_sample (called from sampled_data_continue and interp)

Medium severity · published Jan 1, 2022

CVE-2021-45944

Ghostscript GhostPDL 9.50 through 9.53.3 has a use-after-free in sampled_data_sample (called from sampled_data_continue and interp)

5.5

CVSS

1.5%

EPSS

On KEV

Description

Ghostscript GhostPDL 9.50 through 9.53.3 has a use-after-free in sampled_data_sample (called from sampled_data_continue and interp).

CVSS vector

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

Attack vector

Local

Complexity

Low

Privileges

None

User interaction

Required

Confidentiality

None

Integrity

None

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)1.5% · higher than 73% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Debian Linux · Debian

9.0; 10.0; 11.0 · source: NVD

Ghostscript · Artifex

9.50 through 9.53.3 · source: NVD

Affected product

Ghostscript

Artifex

All Ghostscript CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2021-45944

CVE.org

https://www.cve.org/CVERecord?id=CVE-2021-45944

Exploit

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29903

Third Party Advisory

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30715

git.ghostscript.com

https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=7861fcad13c497728189feafb41cd57b5b50ea25

Third Party Advisory

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/ghostscript/OSV-2021-237.yaml

Issue Tracking

https://github.com/google/oss-fuzz-vulns/issues/16

Mailing List

https://lists.debian.org/debian-lts-announce/2022/01/msg00006.html