Out-of-bounds Read in Pjsip Pjproject
CVE-2021-43845
PJSIP is a free and open source multimedia communication library. In version 2.11.1 and prior, if incoming RTCP XR message contain block, the data field is not checked against the received packet size, potentially resulting in an out-of-bo…
Vulnerability class: Buffer Overflow
EPSS: 0.037 (88.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L.
Affected products
- Pjsip Pjproject — versions <= 2.11.1
- Teluu Pjsip
- Debian Debian_linux — versions 9.0, 10.0, 11.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (Patch, Third Party Advisory)
- security-advisories@github.com (Exploit, Patch, Third Party Advisory, Issue Tracking)
- security-advisories@github.com (Patch, Third Party Advisory)
- security-advisories@github.com (mailing-list, Mailing List, Third Party Advisory)
- security-advisories@github.com (vendor-advisory, Third Party Advisory)
- security-advisories@github.com (mailing-list, Mailing List, Third Party Advisory)
- security-advisories@github.com (vendor-advisory, Third Party Advisory)
- security-advisories@github.com (mailing-list)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2021-43845?
- CVE-2021-43845 is a high-severity vulnerability in Pjsip Pjproject, classified under Out-of-bounds Read. CVSS score: 8.2/10. Published 2021-12-27.
- How severe is CVE-2021-43845?
- High severity. CVSS v3 base score is 8.2 out of 10.
- Is CVE-2021-43845 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.