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[ GLSA 201006-20 ] Asterisk: Multiple vulnerabilities
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PostPosted: Fri Jun 04, 2010 7:26 am    Post subject: [ GLSA 201006-20 ] Asterisk: Multiple vulnerabilities Reply with quote

Gentoo Linux Security Advisory

Title: Asterisk: Multiple vulnerabilities (GLSA 201006-20)
Severity: normal
Exploitable: remote
Date: June 04, 2010
Bug(s): #281107, #283624, #284892, #295270
ID: 201006-20

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.


Affected Packages

Package: net-misc/asterisk
Vulnerable: < 1.2.37
Unaffected: >= 1.2.37
Architectures: All supported architectures


Description


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).


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.


Resolution


All Asterisk users should upgrade to the latest version:
Code:
# 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

CVE-2009-2726
CVE-2009-2346
CVE-2009-4055
CVE-2009-3727
CVE-2008-7220
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