CVE-2025-23016: Integer & buffer overflow in fastcgi < 2.4.5
First published: Fri Jan 10 2025(Updated: )
FastCGI fcgi2 (aka fcgi) 2.x through 2.4.4 has an integer overflow (and resultant heap-based buffer overflow) via crafted nameLen or valueLen values in data to the IPC socket. This occurs in ReadParams in fcgiapp.c.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FastCGI | <2.4.5 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-23016?
CVE-2025-23016 is classified as a high-severity vulnerability due to its potential to cause a heap-based buffer overflow.
How do I fix CVE-2025-23016?
To fix CVE-2025-23016, upgrade to FastCGI fcgi version 2.4.5 or later, which includes patches for this vulnerability.
What versions of FastCGI are affected by CVE-2025-23016?
CVE-2025-23016 affects versions of FastCGI fcgi from 2.0 up to and including 2.4.4.
What is the impact of CVE-2025-23016 on my system?
The impact of CVE-2025-23016 could allow an attacker to exploit the integer overflow and execute arbitrary code through a crafted IPC socket.
Is CVE-2025-23016 a remote exploit vulnerability?
Yes, CVE-2025-23016 can be exploited remotely if the FastCGI service is accessible over the network.
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