VulnerabilityModified
CVE-2020-15900
A memory corruption issue was found in Artifex Ghostscript 9.50 and 9.52.
CRITICAL 9.8EPSS 5.19%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.19%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.19% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-191, CWE-787
- Affected
- artifex/ghostscript · canonical/ubuntu linux · opensuse/leap
- Source
- cve@mitre.org
References
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=log
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00004.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00006.htmlMailing List, Third Party Advisory
- https://artifex.com/security-advisories/CVE-2020-15900Vendor Advisory
- https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=5d499272b95a6b890a1397e11d20937de000d31b
- https://github.com/ArtifexSoftware/ghostpdl/commit/5d499272b95a6b890a1397e11d20937de000d31bPatch, Third Party Advisory
- https://github.com/ArtifexSoftware/ghostpdl/commits/master/psi/zstring.cPatch, Third Party Advisory
- https://security.gentoo.org/glsa/202008-20Third Party Advisory
- https://usn.ubuntu.com/4445-1/Third Party Advisory
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=log
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00004.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00006.htmlMailing List, Third Party Advisory
- https://artifex.com/security-advisories/CVE-2020-15900Vendor Advisory
- https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=5d499272b95a6b890a1397e11d20937de000d31b
- https://github.com/ArtifexSoftware/ghostpdl/commit/5d499272b95a6b890a1397e11d20937de000d31bPatch, Third Party Advisory
- https://github.com/ArtifexSoftware/ghostpdl/commits/master/psi/zstring.cPatch, Third Party Advisory
- https://security.gentoo.org/glsa/202008-20Third Party Advisory
- https://usn.ubuntu.com/4445-1/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.