Vulnerability CVE-2018-16509


Published: 2018-09-05

Description:
An issue was discovered in Artifex Ghostscript before 9.24. Incorrect "restoration of privilege" checking during handling of /invalidaccess exceptions could be used by attackers able to supply crafted PostScript to execute code using the "pipe" instruction.

Type:

CWE-noinfo

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
9.3/10
10/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Redhat -> Enterprise linux desktop 
Redhat -> Enterprise linux server 
Redhat -> Enterprise linux server eus 
Redhat -> Enterprise linux workstation 
Debian -> Debian linux 
Canonical -> Ubuntu linux 
Artifex -> Ghostscript 
Artifex -> Gpl ghostscript 

 References:
http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=5516c614dc33662a2afdc377159f70218e67bde5
http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=78911a01b67d590b4a91afac2e8417360b934156
http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=79cccf641486a6595c43f1de1cd7ade696020a31
http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=520bb0ea7519aa3e79db78aaf0589dae02103764
http://seclists.org/oss-sec/2018/q3/142
http://www.securityfocus.com/bid/105122
https://access.redhat.com/errata/RHSA-2018:2918
https://access.redhat.com/errata/RHSA-2018:3760
https://bugs.ghostscript.com/show_bug.cgi?id=699654
https://lists.debian.org/debian-lts-announce/2018/09/msg00015.html
https://security.gentoo.org/glsa/201811-12
https://usn.ubuntu.com/3768-1/
https://www.artifex.com/news/ghostscript-security-resolved/
https://www.debian.org/security/2018/dsa-4294
https://www.exploit-db.com/exploits/45369/

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