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CVE-2022-4900

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-6757-2
Posted May 3, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6757-2 - USN-6757-1 fixed vulnerabilities in PHP. Unfortunately these fixes were incomplete for Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 23.10. This update fixes the problem. It was discovered that PHP incorrectly handled PHP_CLI_SERVER_WORKERS variable. An attacker could possibly use this issue to cause a crash or execute arbitrary code. This issue only affected Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS.

tags | advisory, arbitrary, php, vulnerability
systems | linux, ubuntu
advisories | CVE-2022-4900, CVE-2024-2756, CVE-2024-3096
SHA-256 | 9657a689d1e137641b5539b1d18e172041c6d3cba27fdc722c254145353f09b5
Ubuntu Security Notice USN-6757-1
Posted Apr 30, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6757-1 - It was discovered that PHP incorrectly handled PHP_CLI_SERVER_WORKERS variable. An attacker could possibly use this issue to cause a crash or execute arbitrary code. This issue only affected Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. It was discovered that PHP incorrectly handled certain cookies. An attacker could possibly use this issue to cookie by pass.

tags | advisory, arbitrary, php
systems | linux, ubuntu
advisories | CVE-2022-4900, CVE-2024-2756, CVE-2024-3096
SHA-256 | d148d55e0339c28ab206c4e04376d9c0144caabdf1c279dfc99b6ae169bc4172
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