| Name | CVE-2022-4900 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3920-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| php7.4 (PTS) | bullseye | 7.4.33-1+deb11u5 | vulnerable |
| bullseye (security) | 7.4.33-1+deb11u7 | fixed |
| php8.2 (PTS) | bookworm | 8.2.24-1~deb12u1 | fixed |
| bookworm (security) | 8.2.26-1~deb12u1 | fixed |
| sid, trixie | 8.2.27-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| php7.3 | source | (unstable) | (not affected) | | | |
| php7.4 | source | bullseye | 7.4.33-1+deb11u6 | | DLA-3920-1 | |
| php7.4 | source | (unstable) | (unfixed) | | | |
| php8.2 | source | (unstable) | (not affected) | | | |
Notes
- php8.2 <not-affected> (Fixed before initial upload)
- php7.3 <not-affected> (Vulnerable code not present)
https://github.com/php/php-src/issues/8989
https://github.com/php/php-src/pull/9000
https://github.com/php/php-src/commit/789a37f14405e2d1a05a76c9fb4ed2d49d4580d5 (php-8.0.22RC1)
Introduced by: https://github.com/php/php-src/commit/82effb3fc7bcab0efcc343b3e03355f5f2f663c9 (php-7.4.0RC1)