CVE-2022-24793
Published: 6 April 2022
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
pjproject Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Needs triage
|
|
| xenial |
Needs triage
|
|
|
ring Launchpad, Ubuntu, Debian |
bionic |
Released
(20180228.1.503da2b~ds1-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
| focal |
Released
(20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1)
|
|
| impish |
Ignored
(end of life)
|
|
| lunar |
Not vulnerable
(20230206.0~ds1-5)
|
|
| mantic |
Not vulnerable
(20230206.0~ds2-1.3)
|
|
| noble |
Does not exist
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Needs triage
|
|
| xenial |
Ignored
(end of standard support)
|
|
|
sflphone Launchpad, Ubuntu, Debian |
trusty |
Ignored
(end of standard support)
|
| upstream |
Needs triage
|
|
| xenial |
Ignored
(end of standard support)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |