Bug 2561041 (CVE-2026-57187) - CVE-2026-57187 asterisk: Asterisk: Denial of Service via premature disconnect during SIP INVITE handling
Summary: CVE-2026-57187 asterisk: Asterisk: Denial of Service via premature disconnect...
Keywords:
Status: NEW
Alias: CVE-2026-57187
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2564794 2564795 2564796 2564798
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-26 19:51 UTC by OSIDB Bzimport
Modified: 2026-11-02 09:49 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-10-26 19:51:34 UTC 
Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, an authenticated attacker may cause a heap-use-after-free in `PJSIP TCP/SDP` handling by sending a `SIP INVITE` over a connection-oriented transport and disconnecting before Asterisk responds with the `200 OK`. So far, the crash has only been reproduced when Asterisk is built with `Address Sanitizer`, which detects the issue. `Address Sanitizer` is a development tool with significant performance overhead and, according to the maintainer, is not used in production systems. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.
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