CVE-2020-36773

Artifex Ghostscript before 9.53.0 has an out-of-bounds write and use-after-free in devices/vector/gdevtxtw.c (for txtwrite) because a single character code in a PDF document can map to more than one Unicode code point (e.g., for a ligature).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CISA-ADPADP
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 26%
VendorProductVersion
artifexghostscript
9.51
artifexghostscript
9.52
artifexghostscript
9.52.1
artifexghostscript
9.53.0:rc1
artifexghostscript
9.53.0:rc2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
ghostscript
bullseye
9.53.3~dfsg-7+deb11u7
fixed
buster
not-affected
bullseye (security)
9.53.3~dfsg-7+deb11u8
fixed
bookworm
10.0.0~dfsg-11+deb12u4
fixed
bookworm (security)
10.0.0~dfsg-11+deb12u5
fixed
sid
10.04.0~dfsg-1
fixed
trixie
10.04.0~dfsg-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
ghostscript
noble
not-affected
mantic
not-affected
jammy
not-affected
focal
not-affected
bionic
not-affected
xenial
not-affected
trusty
ignored
Common Weakness Enumeration
References
https://bugs.ghostscript.com/show_bug.cgi?id=702229
https://bugzilla.opensuse.org/show_bug.cgi?id=1177922
https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8c7bd787defa071c96289b7da9397f673fddb874
https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/tag/gs9530
https://bugs.ghostscript.com/show_bug.cgi?id=702229
https://bugzilla.opensuse.org/show_bug.cgi?id=1177922
https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8c7bd787defa071c96289b7da9397f673fddb874
https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/tag/gs9530