Gentoo Linux Security Advisory 201206-5 - Multiple vulnerabilities in Asterisk might allow remote attackers to execute arbitrary code. Versions less than 1.8.12.1 are affected.
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Debian Linux Security Advisory 2493-1 - Several vulnerabilities were discovered in Asterisk, a PBX and telephony toolkit.
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Asterisk Project Security Advisory - A remotely exploitable crash vulnerability exists in the IAX2 channel driver if an established call is placed on hold without a suggested music class.
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