{"schemaVersion":3,"id":"CVE-2007-4924","aliases":["RHSA-2007:0957"],"status":"published","duplicateOf":null,"title":null,"description":"The Open Phone Abstraction Library (opal), as used by (1) Ekiga before 2.0.10 and (2) OpenH323 before 2.2.4, allows remote attackers to cause a denial of service (crash) via an invalid Content-Length header field in Session Initiation Protocol (SIP) packets, which causes a \\0 byte to be written to an \"attacker-controlled 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