Gentoo: 201209-15 Normal: Asterisk Code Exec & DoS Threats
gentoo
September 26, 2012
Multiple vulnerabilities have been found in Asterisk, the worst of which may allow execution of arbitrary code.
Summary
Multiple vulnerabilities have been found in Asterisk:
* An error in manager.c allows shell access (CVE-2012-2186).
* An error in Asterisk could cause all RTP ports to be exhausted
(CVE-2012-3812).
* A double-free error could occur when two parties attempt to
manipulate the same voicemail account simultaneously (CVE-2012-3863).
* Asterisk does not properly implement certain ACL rules
(CVE-2012-4737).
Topics Covered
Resolution
All Asterisk users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.8.15.1"
References
[ 1 ] CVE-2012-2186 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2186 [ 2 ] CVE-2012-3812 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3812 [ 3 ] CVE-2012-3863 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3863 [ 4 ] CVE-2012-4737 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4737
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201209-15
style>.gentoo_availability{display:block;}
Concerns
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
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Severity: Normal
Title: Asterisk: Multiple vulnerabilities
Date: September 26, 2012
Bugs: #425050, #433750
ID: 201209-15
Topics Covered
Background
Asterisk is an open source telephony engine and toolkit.
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/asterisk < 1.8.15.1 >= 1.8.15.1
Impact
=====
A remote, authenticated attacker could execute arbitrary code with the
privileges of the process, cause a Denial of Service condition, or
bypass outbound call restrictions.
Workaround
There is no known workaround at this time.
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