CVE-2020-15900

A memory corruption issue was found in Artifex Ghostscript 9.50 and 9.52. Use of a non-standard PostScript operator can allow overriding of file access controls. The 'rsearch' calculation for the 'post' size resulted in a size that was too large, and could underflow to max uint32_t. This was fixed in commit 5d499272b95a6b890a1397e11d20937de000d31b.
Wrap or Wraparound
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
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 92%
VendorProductVersion
artifexghostscript
9.50
artifexghostscript
9.52
canonicalubuntu_linux
20.04
opensuseleap
15.1
opensuseleap
15.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
ghostscript
bullseye
9.53.3~dfsg-7+deb11u7
fixed
buster
not-affected
stretch
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
focal
Fixed 9.50~dfsg-5ubuntu4.1
released
bionic
not-affected
xenial
not-affected
trusty
dne
Common Weakness Enumeration
References
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=log
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00006.html
https://artifex.com/security-advisories/CVE-2020-15900
https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=5d499272b95a6b890a1397e11d20937de000d31b
https://github.com/ArtifexSoftware/ghostpdl/commit/5d499272b95a6b890a1397e11d20937de000d31b
https://github.com/ArtifexSoftware/ghostpdl/commits/master/psi/zstring.c
https://security.gentoo.org/glsa/202008-20
https://usn.ubuntu.com/4445-1/
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=log
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00006.html
https://artifex.com/security-advisories/CVE-2020-15900
https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=5d499272b95a6b890a1397e11d20937de000d31b
https://github.com/ArtifexSoftware/ghostpdl/commit/5d499272b95a6b890a1397e11d20937de000d31b
https://github.com/ArtifexSoftware/ghostpdl/commits/master/psi/zstring.c
https://security.gentoo.org/glsa/202008-20
https://usn.ubuntu.com/4445-1/