CVE-2016-8602

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-04-14 · updated 2026-06-17
Weakness: CWE-704

Description

The .sethalftone5 function in psi/zht2.c in Ghostscript before 9.21 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted Postscript document that calls .sethalftone5 with an empty operand stack.

Affected products

Artifex Ghostscript: through 9.20

References

http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=f5c7555c303
http://rhn.redhat.com/errata/RHSA-2017-0013.html
http://rhn.redhat.com/errata/RHSA-2017-0014.html
http://www.debian.org/security/2016/dsa-3691
http://www.openwall.com/lists/oss-security/2016/10/11/5
http://www.openwall.com/lists/oss-security/2016/10/11/7
http://www.securityfocus.com/bid/95311
https://bugs.ghostscript.com/show_bug.cgi?id=697203
https://bugzilla.redhat.com/show_bug.cgi?id=1383940
https://ghostscript.com/doc/9.21/History9.htm
https://security.gentoo.org/glsa/201702-31
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=f5c7555c303

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