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CVE-2021-31878

Status Candidate

Overview

An issue was discovered in PJSIP in Asterisk before 16.19.1 and before 18.5.1. To exploit, a re-INVITE without SDP must be received after Asterisk has sent a BYE request.

Related Files

Asterisk Project Security Advisory - AST-2021-007
Posted Jul 22, 2021
Authored by Joshua Colp, Ivan Poddubny | Site asterisk.org

When Asterisk receives a re-INVITE without SDP after having sent a BYE request a crash will occur. This occurs due to the Asterisk channel no longer being present while code assumes it is.

tags | advisory
advisories | CVE-2021-31878
SHA-256 | ed776e0af45a5b2a169abf425e456827171d23d6768bff6373779d772dd49e62
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