PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below have a cascading out-of-bounds heap read in pjsip_multipart_parse(). After boundary string matching, curptr is advanced past the delimiter without verifying it has not reached the buffer end. This allows 1-2 bytes of adjacent heap memory to be read. All applications that process incoming SIP messages with multipart bodies or SDP content are potentially affected. This issue is resolved in version 2.17.

Affected: Ubuntu:Pro:16.04:LTS: pjproject, Ubuntu:Pro:18.04:LTS: pjproject

PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below have a cascading out-of-bounds heap read in pjsip_multipart_parse(). After boundary string matching, curptr is advanced past the delimiter without verifying it has not reached the buffer end. This allows 1-2 bytes of adjacent heap memory to be read. All applications that process incoming SIP messages with multipart bodies or SDP content are potentially affected. This issue is resolved in version 2.17.

Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Asterisk ausnutzen, um einen Denial-of-Service-Zustand oder eine Speicherbeschädigung zu verursachen, was möglicherweise die Ausführung von Code, die Umgehung von Sicherheitsmaßnahmen oder andere nicht näher spezifizierte Auswirkungen ermöglicht.