Bug 1937745 (CVE-2021-21375) - CVE-2021-21375 pjproject: crash in receiving updated SDP answer after initial SDP negotiation failed
Summary: CVE-2021-21375 pjproject: crash in receiving updated SDP answer after initial...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-21375
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: 1937746 1937747
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-03-11 13:28 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-03-11 17:25 UTC (History)
1 user (show)

Fixed In Version:
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Last Closed: 2021-03-11 17:25:48 UTC
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Description Guilherme de Almeida Suckevicz 2021-03-11 13:28:32 UTC
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 PJSIP version 2.10 and earlier, after an initial INVITE has been sent, when two 183 responses are received, with the first one causing negotiation failure, a crash will occur. This results in a denial of service.

Reference:
https://github.com/pjsip/pjproject/security/advisories/GHSA-hvq6-f89p-frvp

Upstream patch:
https://github.com/pjsip/pjproject/commit/97b3d7addbaa720b7ddb0af9bf6f3e443e664365

Comment 1 Guilherme de Almeida Suckevicz 2021-03-11 13:29:27 UTC
Created pjproject tracking bugs for this issue:

Affects: epel-all [bug 1937747]
Affects: fedora-all [bug 1937746]

Comment 2 Product Security DevOps Team 2021-03-11 17:25:48 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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