CVE-2021-45944: artifex ghostscript Use After Free
CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2021-45944DEBIAN-CVE-2021-45944
Published 31-12-2021Last modified 04-08-2024
Vulnerability summary
CVE-2021-45944 is a medium (CVSS 5.5) Use After Free vulnerability in artifex ghostscript. EPSS estimates a 1.36% chance of exploitation in the next 30 days, higher than 71.3% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
1.36%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 11 · Related 8Timeline
- 31-12-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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 metrics
4 scores · 3 sources · 2 versionsMedium 5.5Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.36%
Chance of exploitation in the next 30 days
Percentile
71%
Versus all other CVEs
30-day change
0.00 pp
From 1.36% on 19-09-2026
19-09-202619-10-2026
EPSS score1.36%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugs.chromium.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian2 products
- ghostscript< 9.54.0~dfsg-5
- debian_linuxEOL9.0 | 10.0 | 11.0
Artifex1 product
- ghostscript≥ 9.50, ≤ 9.53.3
Ubuntu1 product
- ghostscript< 9.26~dfsg+0-0ubuntu0.16.04.14+esm1 | < 9.26~dfsg+0-0ubuntu0.18.04.15 | < 9.50~dfsg-5ubuntu4.5
3 vendors · 4 products
References
12 links- github.com/google/oss-fuzz-vulns/blob/main/vulns/ghostscript/OSV-2021-237.yamlX Refsource MISCREPORTThird Party Advisory
- bugs.chromium.org/p/oss-fuzz/issues/detail?id=29903X Refsource MISCExploitIssue TrackingThird Party Advisory
- lists.debian.org/debian-lts-announce/2022/01/msg00006.htmlMailing ListX Refsource MLISTThird Party Advisory