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CentOS 7 : glibc (CESA-2016:2573)

high Nessus Plugin ID 95320

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Synopsis

The remote CentOS host is missing one or more security updates.

Description

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.

Solution

Update the affected glibc packages.

See Also

http://www.nessus.org/u?46fa8a62

Plugin Details

Severity: High

ID: 95320

File Name: centos_RHSA-2016-2573.nasl

Version: 3.7

Type: local

Agent: unix

Published: 11/28/2016

Updated: 1/4/2021

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2016-3075

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:centos:centos:glibc, p-cpe:/a:centos:centos:glibc-common, p-cpe:/a:centos:centos:glibc-devel, p-cpe:/a:centos:centos:glibc-headers, p-cpe:/a:centos:centos:glibc-static, p-cpe:/a:centos:centos:glibc-utils, p-cpe:/a:centos:centos:nscd, cpe:/o:centos:centos:7

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 11/25/2016

Vulnerability Publication Date: 6/1/2016

Reference Information

CVE: CVE-2016-3075

RHSA: 2016:2573