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CVE-2022-21723

Status Candidate

Overview

PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In versions 2.11.1 and prior, parsing an incoming SIP message that contains a malformed multipart can potentially cause out-of-bound read access. This issue affects all PJSIP users that accept SIP multipart. The patch is available as commit in the `master` branch. There are no known workarounds.

Related Files

Asterisk Project Security Advisory - AST-2022-006
Posted Mar 7, 2022
Authored by Kevin Harwell, Sauw Ming | Site asterisk.org

If an incoming SIP message contains a malformed multi-part body an out-of-bounds read access may occur, which can result in undefined behavior. Note, it is currently uncertain if there is any externally exploitable vector within Asterisk for this issue, but they are providing this as a security issue out of caution.

tags | advisory
advisories | CVE-2022-21723
SHA-256 | 97b8999a7c776bc25667d248af8128d9089bb735a74f21b5e8602a90fb5d57dc
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