Improper Validation of Specified Quantity in Input Affecting io.netty:netty-common package, versions [,4.1.118)[4.2.0.Alpha1,4.2.0.RC3)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-IONETTY-8707740
- published11 Feb 2025
- disclosed10 Feb 2025
- creditChris Vest
Introduced: 10 Feb 2025
CVE-2025-25193 (opens in a new tab)How to fix?
Upgrade io.netty:netty-common to version 4.1.118, 4.2.0.RC3 or higher.
Overview
Affected versions of this package are vulnerable to Improper Validation of Specified Quantity in Input in BufferedReader.readLine(), which does not count null bytes when calculating the acceptable size of an input stream. An attacker can cause the application to crash by creating a large file in C:\etc\os-release or C:\usr\lib\os-release which the application attempts to load. If the file exceeds the JVM's memory limit (1 GB by default) the application will crash when loading it into memory.
Note: This vulnerability affects only Windows environments and is a bypass for the previously reported and fixed CVE-2024-47535.