Vulnerability CVE-2016-8602
Published: 2017-04-14

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.

Type:

CWE-704

 (Incorrect Type Conversion or Cast)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Artifex -> Ghostscript 

 References:
http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=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
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