Scientific Linux Security Update : ghostscript on SL7.x x86_64

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Scientific Linux host is missing one or more security
updates.

Description :

Security Fix(es) :

- It was found that the ghostscript functions getenv,
filenameforall and .libfile did not honor the -dSAFER
option, usually used when processing untrusted
documents, leading to information disclosure. A
specially crafted postscript document could read
environment variable, list directory and retrieve file
content respectively, from the target. (CVE-2013-5653,
CVE-2016-7977)

- It was found that the ghostscript function .setdevice
suffered a use- after-free vulnerability due to an
incorrect reference count. A specially crafted
postscript document could trigger code execution in the
context of the gs process. (CVE-2016-7978)

- It was found that the ghostscript function
.initialize_dsc_parser did not validate its parameter
before using it, allowing a type confusion flaw. A
specially crafted postscript document could cause a
crash code execution in the context of the gs process.
(CVE-2016-7979)

- It was found that ghostscript did not sufficiently check
the validity of parameters given to the .sethalftone5
function. A specially crafted postscript document could
cause a crash, or execute arbitrary code in the context
of the gs process. (CVE-2016-8602)

See also :

http://www.nessus.org/u?72203525

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 96302 ()

Bugtraq ID:

CVE ID: CVE-2013-5653
CVE-2016-7977
CVE-2016-7978
CVE-2016-7979
CVE-2016-8602

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