Scientific Linux Security Update : bash on SL6.x i386/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) :

- An arbitrary command injection flaw was found in the way
bash processed the hostname value. A malicious DHCP
server could use this flaw to execute arbitrary commands
on the DHCP client machines running bash under specific
circumstances. (CVE-2016-0634)

- An arbitrary command injection flaw was found in the way
bash processed the SHELLOPTS and PS4 environment
variables. A local, authenticated attacker could use
this flaw to exploit poorly written setuid programs to
elevate their privileges under certain circumstances.
(CVE-2016-7543)

- A denial of service flaw was found in the way bash
handled popd commands. A poorly written shell script
could cause bash to crash resulting in a local denial of
service limited to a specific bash session.
(CVE-2016-9401)

See also :

http://www.nessus.org/u?c4e99ec6

Solution :

Update the affected bash, bash-debuginfo and / or bash-doc packages.

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 99214 ()

Bugtraq ID:

CVE ID: CVE-2016-0634
CVE-2016-7543
CVE-2016-9401

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