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.

• CWE-191
• CWE-787

• 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

Published

Jul 28, 2020

Last Modified

Jun 17, 2026

Status

Modified

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