ring: PJSIP is a free and open source multimedia communication library written in C language implementing standard based pr...
CVE-2021-43804 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2021-43804, released December 22, 2021. It is not reported as exploited. Patch Radar priority: High.
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 reason's length, this declared length is not checked against the actual received packet size, potentially resulting in an out-of-bound read access. This issue affects all users that use PJMEDIA and RTCP. A malicious actor can send a RTCP BYE message with an invalid reason length. Users are advised to upgrade as soon as possible. There are no known workarounds.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| asterisk · Debian 14 | 1:18.12.0~dfsg+~cs6.12.40431413-1 | DEBIAN-CVE-2021-43804 | Dec 22, 2021 |
| jami · Ubuntu 20.04 LTS (focal) | 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1 | jami 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1 | Mar 14, 2023 |
| jami-daemon · Ubuntu 20.04 LTS (focal) | 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1 | jami-daemon 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1 | Mar 14, 2023 |
| ring · Debian 12.15 (bookworm) | 20230206.0~ds1-1 | DEBIAN-CVE-2021-43804 | Dec 22, 2021 |
| ring · Ubuntu 18.04.6 LTS (bionic) | 20180228.1.503da2b~ds1-1ubuntu0.1~esm1 | ring 20180228.1.503da2b~ds1-1ubuntu0.1~esm1 | Mar 14, 2023 |
| ring · Ubuntu 20.04 LTS (focal) | 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1 | ring 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1 | Mar 14, 2023 |
| ring-daemon · Ubuntu 18.04.6 LTS (bionic) | 20180228.1.503da2b~ds1-1ubuntu0.1~esm1 | ring-daemon 20180228.1.503da2b~ds1-1ubuntu0.1~esm1 | Mar 14, 2023 |
| ring-daemon · Ubuntu 20.04 LTS (focal) | 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1 | ring-daemon 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1 | Mar 14, 2023 |
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