CVE-2021-21375
Crash in receiving updated SDP answer after initial SDP negotiation failed
- State
- Published
- Severity
- 6.5 Medium
- Published
- Mar 10, 2021
- Updated
- Aug 3, 2024
- Reserved
- Dec 22, 2020
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | GitHub_M |
Weaknesses
- CWE-400 Uncontrolled Resource Consumption
Affected Products
| Product | Versions |
|---|---|
pjprojectpjsip |
|
References
- https://github.com/pjsip/pjproject/security/advisories/GHSA-hvq6-f89p-frvp
- https://github.com/pjsip/pjproject/commit/97b3d7addbaa720b7ddb0af9bf6f3e443e664365
- [debian-lts-announce] 20210423 [SECURITY] [DLA 2636-1] pjproject security updatemailing-list
- [debian-lts-announce] 20210523 [SECURITY] [DLA 2665-1] ring security updatemailing-list
- GLSA-202107-42vendor-advisory
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