CVE-2022-27938: libsixel Reachable Assertion
CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2022-27938DEBIAN-CVE-2022-27938
Published 26-03-2022Last modified 03-08-2024
Vulnerability summary
CVE-2022-27938 is a medium (CVSS 5.5) Reachable Assertion vulnerability in libsixel. EPSS estimates a 0.61% chance of exploitation in the next 30 days, higher than 48.3% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
0.61%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 26-03-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
stb_image.h (aka the stb image loader) 2.19, as used in libsixel and other products, has a reachable assertion in stbi__create_png_image_raw.
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
0.61%
Chance of exploitation in the next 30 days
Percentile
48%
Versus all other CVEs
30-day change
0.00 pp
From 0.61% on 18-09-2026
18-09-202618-10-2026
EPSS score0.61%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundLibsixel
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian1 product
- libstbAll versions (No fix recorded)
Libsixel1 product
- libsixel< 1.10.4
Saitoha1 product
- libsixel< 1.8.7
Ubuntu1 product
- libstbAll versions (No fix recorded)
4 vendors · 4 products
References
4 links- github.com/saitoha/libsixel/issues/163X Refsource MISCREPORTExploitIssue TrackingPatchThird Party Advisory
