Vulnerability Details : 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.
Vulnerability category: Memory Corruption
Products affected by CVE-2020-15900
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
- cpe:2.3:a:artifex:ghostscript:9.50:*:*:*:*:*:*:*
- cpe:2.3:a:artifex:ghostscript:9.52:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-15900
0.67%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 80 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-15900
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2020-15900
-
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.Assigned by: nvd@nist.gov (Primary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-15900
-
https://github.com/ArtifexSoftware/ghostpdl/commits/master/psi/zstring.c
History for psi/zstring.c - ArtifexSoftware/ghostpdl · GitHubPatch;Third Party Advisory
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http://git.ghostscript.com/?p=ghostpdl.git;a=log
git.ghostscript.com Git - ghostpdl.git/logMailing List;Vendor Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00006.html
[security-announce] openSUSE-SU-2020:1146-1: important: Security updateMailing List;Third Party Advisory
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https://artifex.com/security-advisories/CVE-2020-15900
Security Advisories - ArtifexVendor Advisory
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https://security.gentoo.org/glsa/202008-20
GPL Ghostscript: Multiple vulnerabilities (GLSA 202008-20) — Gentoo securityThird Party Advisory
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https://usn.ubuntu.com/4445-1/
USN-4445-1: Ghostscript vulnerability | Ubuntu security notices | UbuntuThird Party Advisory
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http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00004.html
[security-announce] openSUSE-SU-2020:1142-1: important: Security updateMailing List;Third Party Advisory
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https://github.com/ArtifexSoftware/ghostpdl/commit/5d499272b95a6b890a1397e11d20937de000d31b
Bug 702582, CVE 2020-15900 Memory Corruption in Ghostscript 9.52 · ArtifexSoftware/ghostpdl@5d49927 · GitHubPatch;Third Party Advisory
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https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=5d499272b95a6b890a1397e11d20937de000d31b
git.ghostscript.com Git - ghostpdl.git/commitdiffPatch;Vendor Advisory
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