CVE-2021-43845

NameCVE-2021-43845
DescriptionPJSIP 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-bound read access. This affects all users that use PJMEDIA and RTCP XR. A malicious actor can send a RTCP XR message with an invalid packet size.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
pjproject (PTS)stretch2.5.5~dfsg-6+deb9u1vulnerable
stretch (security)2.5.5~dfsg-6+deb9u2vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
pjprojectsource(unstable)(unfixed)

Notes

https://github.com/pjsip/pjproject/security/advisories/GHSA-r374-qrwv-86hh
https://github.com/pjsip/pjproject/commit/f74c1fc22b760d2a24369aa72c74c4a9ab985859
https://github.com/pjsip/pjproject/pull/2924
check, might affect in impact src:ring

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