CVE-2021-43300
9.8
CRITICAL
CVSS 3.1
EPSS 0.43%
Description
Stack overflow in PJSUA API when calling pjsua_recorder_create. An attacker-controlled 'filename' argument may cause a buffer overflow since it is copied to a fixed-size stack buffer without any size validation.
How to fix CVE-2021-43300
To remediate CVE-2021-43300, upgrade the affected package to a fixed version below.
- Alpine/pjproject—upgrade to 2.12-r0 or later
- Debian/asterisk—upgrade to 1:16.28.0~dfsg-0+deb11u1 or later
- —upgrade to 20210112.2.b757bac~ds1-1+deb11u1 or later
Is CVE-2021-43300 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2.12-r0
- from 0, < 1:16.28.0~dfsg-0+deb11u1
- from 0, < 20210112.2.b757bac~ds1-1+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |