CVE-2020-21048

An issue in the dither.c component of libsixel prior to v1.8.4 allows attackers to cause a denial of service (DOS) via a crafted PNG file.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
mitreCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 60%
VendorProductVersion
libsixel_projectlibsixel
𝑥
< 1.8.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libsixel
bullseye
1.8.6-2
fixed
buster
no-dsa
stretch
no-dsa
sid
1.10.3-3
fixed
trixie
1.10.3-3
fixed
bookworm
1.10.3-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libsixel
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
focal
needs-triage
bionic
needs-triage
xenial
needs-triage
trusty
dne
References
https://bitbucket.org/netbsd/pkgsrc/commits/6f0c011cbfccdffa635d04c84433b1a02687adad
https://github.com/saitoha/libsixel/blob/master/ChangeLog
https://github.com/saitoha/libsixel/commit/cb373ab6614c910407c5e5a93ab935144e62b037
https://github.com/saitoha/libsixel/issues/73
https://github.com/saitoha/libsixel/releases/tag/v1.8.4
https://bitbucket.org/netbsd/pkgsrc/commits/6f0c011cbfccdffa635d04c84433b1a02687adad
https://github.com/saitoha/libsixel/blob/master/ChangeLog
https://github.com/saitoha/libsixel/commit/cb373ab6614c910407c5e5a93ab935144e62b037
https://github.com/saitoha/libsixel/issues/73
https://github.com/saitoha/libsixel/releases/tag/v1.8.4