Use After Free in Saitoha Libsixel

CVE-2022-27046

libsixel 1.8.6 suffers from a Heap Use After Free vulnerability in in libsixel/src/dither.c:388.

Vulnerability class: Use-After-Free

EPSS: 0.010 (59.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Saitoha Libsixel — versions 1.8.6
N/a — versions n/a

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2022-27046?: CVE-2022-27046 is a high-severity vulnerability in Saitoha Libsixel, classified under Use After Free. CVSS score: 8.8/10. Published 2022-04-08.
How severe is CVE-2022-27046?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2022-27046 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.