Scientific Linux Security Update : glibc on SL6.x i386/x86_64

This script is Copyright (C) 2015 Tenable Network Security, Inc.


Synopsis :

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

Description :

A buffer overflow flaw was found in the way glibc's gethostbyname_r()
and other related functions computed the size of a buffer when passed
a misaligned buffer as input. An attacker able to make an application
call any of these functions with a misaligned buffer could use this
flaw to crash the application or, potentially, execute arbitrary code
with the permissions of the user running the application.
(CVE-2015-1781)

It was discovered that, under certain circumstances, glibc's
getaddrinfo() function would send DNS queries to random file
descriptors. An attacker could potentially use this flaw to send DNS
queries to unintended recipients, resulting in information disclosure
or data loss due to the application encountering corrupted data.
(CVE-2013-7423)

This update also fixes the following bug :

- Previously, the nscd daemon did not properly reload
modified data when the user edited monitored nscd
configuration files. As a consequence, nscd returned
stale data to system processes. This update adds a
system of inotify-based monitoring and stat-based backup
monitoring for nscd configuration files. As a result,
nscd now detects changes to its configuration files and
reloads the data properly, which prevents it from
returning stale data.

See also :

http://www.nessus.org/u?51a607cf

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 6.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 82987 ()

Bugtraq ID:

CVE ID: CVE-2013-7423
CVE-2015-1781

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