Out-of-bounds Read in Saitoha Libsixel

CVE-2020-19668

Unverified indexs into the array lead to out of bound access in the gif_out_code function in fromgif.c in libsixel 1.8.6.

Vulnerability class: Buffer Overflow

EPSS: 0.009 (54.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

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

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

Public proof-of-concept exploits

peanuts62/IOT_

References

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

Frequently asked questions

What is CVE-2020-19668?: CVE-2020-19668 is a medium-severity vulnerability in Saitoha Libsixel, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2020-11-20.
How severe is CVE-2020-19668?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2020-19668 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.