Fedora 18 : asterisk-11.2.2-1.fc18 (2013-4566)

This script is Copyright (C) 2013-2016 Tenable Network Security, Inc.


Synopsis :

The remote Fedora host is missing a security update.

Description :

The Asterisk Development Team has announced security releases for
Certified Asterisk 1.8.15 and Asterisk 1.8, 10, and 11. The available
security releases are released as versions 1.8.15-cert2, 1.8.20.2,
10.12.2, 10.12.2-digiumphones, and 11.2.2.

These releases are available for immediate download at
http://downloads.asterisk.org/pub/telephony/asterisk/releases

The release of these versions resolve the following issues :

- A possible buffer overflow during H.264 format
negotiation. The format attribute resource for H.264
video performs an unsafe read against a media attribute
when parsing the SDP.

This vulnerability only affected Asterisk 11.

- A denial of service exists in Asterisk's HTTP server.
AST-2012-014, fixed in January of this year, contained a
fix for Asterisk's HTTP server for a remotely-triggered
crash. While the fix prevented the crash from being
triggered, a denial of service vector still exists with
that solution if an attacker sends one or more HTTP POST
requests with very large Content-Length values.

This vulnerability affects Certified Asterisk 1.8.15,
Asterisk 1.8, 10, and 11

- A potential username disclosure exists in the SIP
channel driver. When authenticating a SIP request with
alwaysauthreject enabled, allowguest disabled, and
autocreatepeer disabled, Asterisk discloses whether a
user exists for INVITE, SUBSCRIBE, and REGISTER
transactions in multiple ways.

This vulnerability affects Certified Asterisk 1.8.15,
Asterisk 1.8, 10, and 11

These issues and their resolutions are described in the security
advisories.

For more information about the details of these vulnerabilities,
please read security advisories AST-2013-001, AST-2013-002, and
AST-2013-003, which were released at the same time as this
announcement.

For a full list of changes in the current releases, please see the
ChangeLogs :

http://downloads.asterisk.org/pub/telephony/certified-asterisk/release
s/ChangeLog-1.8.15-cert2
http://downloads.asterisk.org/pub/telephony/asterisk/releases/ChangeLo
g-1.8.20.2
http://downloads.asterisk.org/pub/telephony/asterisk/releases/ChangeLo
g-10.12.2
http://downloads.asterisk.org/pub/telephony/asterisk/releases/ChangeLo
g-10.12.2-digiumphones
http://downloads.asterisk.org/pub/telephony/asterisk/releases/ChangeLo
g-11.2.2

The security advisories are available at :

-
http://downloads.asterisk.org/pub/security/AST-2013-001.
pdf

-
http://downloads.asterisk.org/pub/security/AST-2013-00
2.pdf

-
http://downloads.asterisk.org/pub/security/AST-2013-00
3.pdf

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.

See also :

http://downloads.asterisk.org/pub/security/AST-2013-001.pdf
http://downloads.asterisk.org/pub/security/AST-2013-002.pdf
http://downloads.asterisk.org/pub/security/AST-2013-003.pdf
http://downloads.asterisk.org/pub/telephony/asterisk/releases
http://www.nessus.org/u?29e5303b
http://www.nessus.org/u?a4695ab6
http://www.nessus.org/u?05ab7e1a
http://www.nessus.org/u?16e35cb0
http://www.nessus.org/u?d97a0e84
https://bugzilla.redhat.com/show_bug.cgi?id=928550
http://www.nessus.org/u?dcf63440

Solution :

Update the affected asterisk package.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 6.5
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Fedora Local Security Checks

Nessus Plugin ID: 65836 ()

Bugtraq ID: 58760

CVE ID: CVE-2013-2685

Ready to Amp Up Your Nessus Experience?

Get Nessus Professional to scan unlimited IPs, run compliance checks & more

Buy Nessus Professional Now