Bug 1930890 (CVE-2021-26906) - CVE-2021-26906 asterisk: remote crash vulnerability in PJSIP channel driver
Summary: CVE-2021-26906 asterisk: remote crash vulnerability in PJSIP channel driver
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-26906
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1930891
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-02-19 17:31 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-02-19 19:02 UTC (History)
3 users (show)

Fixed In Version:
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Last Closed: 2021-02-19 19:02:00 UTC
Embargoed:

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Description Guilherme de Almeida Suckevicz 2021-02-19 17:31:52 UTC 
An issue was discovered in res_pjsip_session.c in Digium Asterisk through 13.38.1; 14.x, 15.x, and 16.x through 16.16.0; 17.x through 17.9.1; and 18.x through 18.2.0, and Certified Asterisk through 16.8-cert5. An SDP negotiation vulnerability in PJSIP allows a remote server to potentially crash Asterisk by sending specific SIP responses that cause an SDP negotiation failure.

Reference:
https://downloads.asterisk.org/pub/security/AST-2021-005.html
Comment 1 Guilherme de Almeida Suckevicz 2021-02-19 17:32:09 UTC 
Created asterisk tracking bugs for this issue:

Affects: fedora-all [bug 1930891]
Comment 2 Product Security DevOps Team 2021-02-19 19:02:00 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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