Fedora 22 : glibc-2.21-11.fc22 (2016-0480defc94)

high Nessus Plugin ID 89473
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Fedora host is missing a security update.

Description

This updates addresses a critical security vulnerability in the DNS resolver related to `AF_UNSPEC` queries with `getaddrinfo` (CVE-2015-7547). It also includes security fixes for CVE-2015-8777 and CVE-2015-1781. It improves `malloc` scalability for applications which start and terminate many threads. The output of `locale -a` is now ASCII-only (previously, it contained ISO-8859-1 characters).

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected glibc package.

See Also

https://bugzilla.redhat.com/show_bug.cgi?id=1199525

https://bugzilla.redhat.com/show_bug.cgi?id=1260581

https://bugzilla.redhat.com/show_bug.cgi?id=1293532

http://www.nessus.org/u?9683b79d

https://www.tenable.com/security/research/tra-2017-08

Plugin Details

Severity: High

ID: 89473

File Name: fedora_2016-0480defc94.nasl

Version: 1.14

Type: local

Agent: unix

Published: 3/4/2016

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: E:POC/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

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

Temporal Vector: E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:fedoraproject:fedora:glibc, cpe:/o:fedoraproject:fedora:22

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/17/2016

Reference Information

CVE: CVE-2015-1781, CVE-2015-7547, CVE-2015-8777