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CVE-2022-4900

Published: 2 November 2023

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.

Notes

AuthorNote
Priority reason:
Crash in command line tool only.
leosilva
php7.2 in bionic doesn't have the affected code.
rodrigo-zaiden
affected code seems like was added in commit 82effb3f,
that is included with php7.4.

Priority

Low

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
php5
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Does not exist

kinetic Does not exist

trusty Not vulnerable
(code not present)
upstream Needs triage

xenial Does not exist

php7.0
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Does not exist

kinetic Does not exist

trusty Does not exist

upstream Needs triage

xenial Not vulnerable
(code not present)
php7.2
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal Does not exist

jammy Does not exist

kinetic Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

php7.4
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (7.4.3-4ubuntu2.22)
jammy Does not exist

kinetic Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

php8.1
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy
Released (8.1.2-1ubuntu2.17)
kinetic Ignored
(end of life, was needed)
lunar Not vulnerable
(8.1.12-1ubuntu4)
mantic Does not exist

noble Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

Patches:
upstream: https://github.com/php/php-src/pull/9000
upstream: https://github.com/php/php-src/commit/789a37f14405e2d1a05a76c9fb4ed2d49d4580d5
php8.2
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Does not exist

mantic Not vulnerable
(8.2.10-2ubuntu1)
noble Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

php8.3
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Does not exist

mantic Does not exist

noble Not vulnerable
(8.3.4-1build1)
trusty Does not exist

upstream Needs triage

xenial Does not exist

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H