Vulnerability CVE-2018-18073


Published: 2018-10-15

Description:
Artifex Ghostscript allows attackers to bypass a sandbox protection mechanism by leveraging exposure of system operators in the saved execution stack in an error object.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Ghostscript Exposed System Operators
Tavis Ormandy
11.10.2018

Type:

CWE-200

(Information Exposure)

Vendor: Debian
Product: Debian linux 
Version: 9.0; 8.0;
Vendor: Canonical
Product: Ubuntu linux 
Version:
18.10
18.04
16.04
14.04
Vendor: Artifex
Product: Ghostscript 

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None

 References:
http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=34cc326eb2c5695833361887fe0b32e8d987741c
http://packetstormsecurity.com/files/149758/Ghostscript-Exposed-System-Operators.html
http://www.openwall.com/lists/oss-security/2018/10/10/12
https://access.redhat.com/errata/RHSA-2018:3834
https://bugs.chromium.org/p/project-zero/issues/detail?id=1690
https://bugs.ghostscript.com/show_bug.cgi?id=699927
https://lists.debian.org/debian-lts-announce/2018/10/msg00013.html
https://usn.ubuntu.com/3803-1/
https://www.debian.org/security/2018/dsa-4336

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