asterisk: PJSIP is a free and open source multimedia communication library written in C
CVE-2023-27585 is fixed in 5 products on 1 platform, first by jami 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1, released March 14, 2023. It is not reported as exploited. Patch Radar priority: High.
PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.13 and prior affects applications that use PJSIP DNS resolver. It doesn't affect PJSIP users who do not utilise PJSIP DNS resolver. This vulnerability is related to CVE-2022-24793. The difference is that this issue is in parsing the query record `parse_query()`, while the issue in CVE-2022-24793 is in `parse_rr()`. A patch is available as commit `d1c5e4d` in the `master` branch. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver implementation instead.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| asterisk · Debian 11.6 (bullseye) | 1:16.28.0~dfsg-0+deb11u3 | DSA-5438-1 | Jun 22, 2023 |
| asterisk · Debian 14 | 1:20.4.0~dfsg+~cs6.13.40431414-1 | DEBIAN-CVE-2023-27585 | Mar 14, 2023 |
| 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~ds2-1.1+deb12u1 | DSA-5956-1 | Jul 3, 2025 |
| 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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