Oracle Linux 7 : glibc (ELSA-2016-2573)

This script is Copyright (C) 2016 Tenable Network Security, Inc.


Synopsis :

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

Description :

From Red Hat Security Advisory 2016:2573 :

An update for glibc is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Low. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

The glibc packages provide the standard C libraries (libc), POSIX
thread libraries (libpthread), standard math libraries (libm), and the
name service cache daemon (nscd) used by multiple programs on the
system. Without these libraries, the Linux system cannot function
correctly.

Security Fix(es) :

* A stack overflow vulnerability was found in _nss_dns_getnetbyname_r.
On systems with nsswitch configured to include 'networks: dns' with a
privileged or network-facing service that would attempt to resolve
user-provided network names, an attacker could provide an excessively
long network name, resulting in stack corruption and code execution.
(CVE-2016-3075)

This issue was discovered by Florian Weimer (Red Hat).

Additional Changes :

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.3 Release Notes linked from the References section.

See also :

https://oss.oracle.com/pipermail/el-errata/2016-November/006465.html

Solution :

Update the affected glibc packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 3.9
(CVSS2#E:POC/RL:OF/RC:ND)
Public Exploit Available : true

Family: Oracle Linux Local Security Checks

Nessus Plugin ID: 94696 ()

Bugtraq ID:

CVE ID: CVE-2016-3075

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