# CVE-2022-24793: ring: PJSIP is a free and open source multimedia communication library written in C

CVE-2022-24793 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2022-24793, released April 6, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-24793
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0218
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 6, 2022

## Description

PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.12 and prior affects applications that use PJSIP DNS resolution. It doesn't affect PJSIP users who utilize an external resolver. This vulnerability is related to CVE-2023-27585. The difference is that this issue is in parsing the query record `parse_rr()`, while the issue in CVE-2023-27585 is in `parse_query()`. A patch is available in the `master` branch of the `pjsip/pjproject` GitHub repository. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver instead.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | asterisk Debian 14 | 1:18.14.0~~rc1~dfsg+~cs6.12.40431414-1 | [DEBIAN-CVE-2022-24793](https://patchblox.com/security/data/fix/linux/debian-cve-2022-24793.md) | Apr 6, 2022 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-focal-jami-20190215.1.f152c98-ds1-1-deb10u2build0.20.04.1.md) | Mar 14, 2023 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-focal-jami-daemon-20190215.1.f152c98-ds1-1-deb10u2build0.20.04.1.md) | Mar 14, 2023 |
| Linux | ring Debian 12.15 (bookworm) | 20230206.0~ds1-1 | [DEBIAN-CVE-2022-24793](https://patchblox.com/security/data/fix/linux/debian-cve-2022-24793.md) | Apr 6, 2022 |
| Linux | ring Ubuntu 18.04.6 LTS (bionic) | 20180228.1.503da2b~ds1-1ubuntu0.1~esm1 | [ring 20180228.1.503da2b~ds1-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ring-20180228.1.503da2b-ds1-1ubuntu0.1-esm1.md) | Mar 14, 2023 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ring-20190215.1.f152c98-ds1-1-deb10u2build0.20.04.1.md) | Mar 14, 2023 |
| Linux | ring-daemon Ubuntu 18.04.6 LTS (bionic) | 20180228.1.503da2b~ds1-1ubuntu0.1~esm1 | [ring-daemon 20180228.1.503da2b~ds1-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ring-daemon-20180228.1.503da2b-ds1-1ubuntu0.1-esm1.md) | Mar 14, 2023 |
| Linux | 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](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ring-daemon-20190215.1.f152c98-ds1-1-deb10u2build0.20.04.1.md) | Mar 14, 2023 |

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