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Alerts This Week
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Gentoo: GLSA-201006-20 Moderate: Asterisk Denial of Service Issues

gentoo
Calendar Grey June 4, 2010
Scroller Gentoo
Several weaknesses in Asterisk may permit remote adversaries to leverage circumstances that could result in Denial of Service.
Multiple vulnerabilities in Asterisk might allow remote attackers to cause a Denial of Service condition, or conduct other attacks.

Summary

Multiple vulnerabilities have been reported in Asterisk: * Nick Baggott reported that Asterisk does not properly process overly long ASCII strings in various packets (CVE-2009-2726).
* Noam Rathaus and Blake Cornell reported a flaw in the IAX2 protocol implementation (CVE-2009-2346).
* amorsen reported an input processing error in the RTP protocol implementation (CVE-2009-4055).
* Patrik Karlsson reported an information disclosure flaw related to the REGISTER message (CVE-2009-3727).
* A vulnerability was found in the bundled Prototype JavaScript library, related to AJAX calls (CVE-2008-7220).

Topics%20covered

Topics Covered

security advisory denial of service gentoo remote attack software updates security issues asterisk

Resolution

All Asterisk users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.2.37"
NOTE: This is a legacy GLSA. Updates for all affected architectures are available since January 5, 2010. It is likely that your system is already no longer affected by this issue.

References

[ 1 ] CVE-2009-2726 https://www.cve.org/CVERecord?id=CVE-2009-2726 [ 2 ] CVE-2009-2346 https://www.cve.org/CVERecord?id=CVE-2009-2346 [ 3 ] CVE-2009-4055 https://www.cve.org/CVERecord?id=CVE-2009-4055 [ 4 ] CVE-2009-3727 https://www.cve.org/CVERecord?id=CVE-2009-3727 [ 5 ] CVE-2008-7220 https://www.cve.org/CVERecord?id=CVE-2008-7220

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201006-20
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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.

Severity: Normal
Title: Asterisk: Multiple vulnerabilities
Date: June 04, 2010
Bugs: #281107, #283624, #284892, #295270
ID: 201006-20

Topics%20covered

Topics Covered

security advisory denial of service gentoo remote attack software updates security issues asterisk

Synopsis

Multiple vulnerabilities in Asterisk might allow remote attackers to cause a Denial of Service condition, or conduct other attacks.

Background

Asterisk is an open source telephony engine and toolkit.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/asterisk < 1.2.37 >= 1.2.37

Impact

===== A remote attacker could exploit these vulnerabilities by sending a specially crafted package, possibly causing a Denial of Service condition, or resulting in information disclosure.

Workaround

There is no known workaround at this time.