PHP CLI Server Heap Buffer Overflow via PHP_CLI_SERVER_WORKERS
CVE-2022-4900 Published on November 2, 2023
Potential buffer overflow in php_cli_server_startup_workers
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.
Vulnerability Analysis
CVE-2022-4900 is exploitable with local system access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Timeline
Reported to Red Hat.
Made public.
Weakness Type
What is a Buffer Overflow Vulnerability?
The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.
CVE-2022-4900 has been classified to as a Buffer Overflow vulnerability or weakness.
Products Associated with CVE-2022-4900
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Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.