CVE-2021-43303
9.8
CRITICAL
CVSS 3.1
EPSS 0.43%
Description
Buffer overflow in PJSUA API when calling pjsua_call_dump. An attacker-controlled 'buffer' argument may cause a buffer overflow, since supplying an output buffer smaller than 128 characters may overflow the output buffer, regardless of the 'maxlen' argument supplied
How to fix CVE-2021-43303
To remediate CVE-2021-43303, upgrade the affected package to a fixed version below.
- Alpine/pjproject—upgrade to 2.12-r0 or later
- —upgrade to 1:16.28.0~dfsg-0+deb11u1 or later
- —upgrade to 20210112.2.b757bac~ds1-1+deb11u1 or later
Is CVE-2021-43303 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 |