Vulnerability Details : CVE-2022-24793
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.
Vulnerability category: Overflow
Products affected by CVE-2022-24793
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:a:pjsip:pjsip:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-24793
1.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 84 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-24793
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2022-24793
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by:
- nvd@nist.gov (Secondary)
- security-advisories@github.com (Primary)
References for CVE-2022-24793
-
https://github.com/pjsip/pjproject/security/advisories/GHSA-p6g5-v97c-w5q4
Potential heap buffer overflow when parsing DNS packets · Advisory · pjsip/pjproject · GitHubPatch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2022/05/msg00047.html
[SECURITY] [DLA 3036-1] pjproject security updateMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
[SECURITY] [DLA 3549-1] ring security update
-
https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html
[SECURITY] [DLA 3194-1] asterisk security updateMailing List;Third Party Advisory
-
https://github.com/pjsip/pjproject/commit/9fae8f43accef8ea65d4a8ae9cdf297c46cfe29a
Merge pull request from GHSA-p6g5-v97c-w5q4 · pjsip/pjproject@9fae8f4 · GitHubPatch;Third Party Advisory
-
https://security.gentoo.org/glsa/202210-37
PJSIP: Multiple Vulnerabilities (GLSA 202210-37) — Gentoo securityThird Party Advisory
-
https://www.debian.org/security/2022/dsa-5285
Debian -- Security Information -- DSA-5285-1 asteriskThird Party Advisory
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