CVE-2022-4900
Potential buffer overflow in php_cli_server_startup_workers
5.5
MEDIUM
CVSS 3.1
EPSS 0.37%
Description
A vulnerability was found in PHP where setting the environment variable PHP_CLI_SERVER_WORKERS to a large value leads to a heap buffer overflow.
How to fix CVE-2022-4900
To remediate CVE-2022-4900, upgrade the affected package to a fixed version below.
- Bitnami/libphp—upgrade to 8.0.22 or later
- —upgrade to 8.0.22 or later
- —upgrade to 8.0.22 or later
- —upgrade to 7.4.33-1+deb11u6 or later
- —upgrade to 7.4.33-1+deb11u6 or later
Is CVE-2022-4900 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (5)
- >= 7.4.0, < 8.0.22
- >= 7.4.0, < 8.0.22
- >= 7.4.0, < 8.0.22
- from 0, < 7.4.33-1+deb11u6
- from 0, < 7.4.33-1+deb11u6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |