CVE-2020-21049

moderate-risk
Published 2021-09-14

An invalid read in the stb_image.h component of libsixel prior to v1.8.5 allows attackers to cause a denial of service (DOS) via a crafted PSD file.

Do I need to act?

-
0.41% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Libsixel Project

References (10)

Broken Link https://bitbucket.org/netbsd/pkgsrc/commits/970a81d31ec7498e04d09b6b7771cef35f63...
Release Notes https://github.com/saitoha/libsixel/blob/master/ChangeLog
Patch https://github.com/saitoha/libsixel/commit/0b1e0b3f7b44233f84e5c9f512f8c90d6bbbe...
Exploit https://github.com/saitoha/libsixel/issues/74
Release Notes https://github.com/saitoha/libsixel/releases/tag/v1.8.5
Broken Link https://bitbucket.org/netbsd/pkgsrc/commits/970a81d31ec7498e04d09b6b7771cef35f63...
Release Notes https://github.com/saitoha/libsixel/blob/master/ChangeLog
Patch https://github.com/saitoha/libsixel/commit/0b1e0b3f7b44233f84e5c9f512f8c90d6bbbe...
Exploit https://github.com/saitoha/libsixel/issues/74
Release Notes https://github.com/saitoha/libsixel/releases/tag/v1.8.5
31
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 2/34 · Minimal
Exposure 5/34 · Minimal