Buffer Overflow Vulnerabilities in FreeSWITCH 1.2's switch_perform_substitution Function

CVE-2013-2238

Multiple buffer overflows in the switch_perform_substitution function in switch_regex.c in FreeSWITCH 1.2 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to the index and substituted variables.

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