Crash in receiving updated SDP answer after initial SDP negotiation failed
CVE-2021-21375

6.5MEDIUM

Key Information:

Vendor

Pjsip

Status
Pjproject
Vendor
CVE Published:
10 March 2021

What is CVE-2021-21375?

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.

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Affected Version(s)

pjproject <= 2.10

References

https://github.com/pjsip/pjproject/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/pjsip/pjproject/commit/97b3d7addbaa720...
x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2021/04/msg0...
mailing-listx_refsource_MLIST

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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