Out-of-bounds Read in Pjsip Pjproject
CVE-2021-43804
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 affected versions if the incoming RTCP BYE message contains a reaso…
Vulnerability class: Buffer Overflow
EPSS: 0.003 (53.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Pjsip Pjproject — versions <= 2.11.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/pjsip/pjproject/security/advisories/GHSA-3qx3-cg72-wrh9
- github.com/pjsip/pjproject/commit/8b621f192cae14456ee0b0ade52ce6c6f258af1e
- [debian-lts-announce] 20220328 [SECURITY] [DLA 2962-1] pjproject security update (mailing-list)
- GLSA-202210-37 (vendor-advisory)
- [debian-lts-announce] 20221117 [SECURITY] [DLA 3194-1] asterisk security update (mailing-list)
- DSA-5285 (vendor-advisory)
- [debian-lts-announce] 20230829 [SECURITY] [DLA 3549-1] ring security update (mailing-list)
Frequently asked questions
- What is CVE-2021-43804?
- CVE-2021-43804 is a high-severity vulnerability in Pjsip Pjproject, classified under Out-of-bounds Read. CVSS score: 7.3/10. Published 2021-12-22.
- How severe is CVE-2021-43804?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2021-43804 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.