Vulnerability CVE-2017-9835
Published: 2017-07-26   Modified: 2017-07-27

Description:
The gs_alloc_ref_array function in psi/ialloc.c in Artifex Ghostscript 9.21 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted PostScript document. This is related to a lack of an integer overflow check in base/gsalloc.c.

Type:

CWE-190

 (Integer Overflow or Wraparound)

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
Debian -> Debian linux 
Artifex -> Ghostscript 

 References:
http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=cfde94be1d4286bc47633c6e6eaf4e659bd78066
http://www.debian.org/security/2017/dsa-3986
http://www.securityfocus.com/bid/99991
https://bugs.ghostscript.com/show_bug.cgi?id=697985
https://security.gentoo.org/glsa/201811-12
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