CVE-2020-15900
9.8
CRITICAL · CVSS 3.1 · EPSS 5.2% (pctl 92)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 5.19% — more likely to be exploited than 92% of all CVEs |
| Weakness | CWE-191 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2020-07-28 |
| Last modified | 2026-06-17 |
Affected (3)
| Vendor | Product |
|---|---|
| artifex | ghostscript |
| canonical | ubuntu linux |
| opensuse | leap |
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/
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