Vulnerabilities affecting this package (0)
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Summary |
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This package is not known to be affected by vulnerabilities.
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Vulnerabilities fixed by this package (1)
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VCID-5vth-uvb8-kke2
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Denial of Service attack on windows app using Netty
### Summary
An unsafe reading of environment file could potentially cause a denial of service in Netty.
When loaded on an Windows application, Netty attemps to load a file that does not exist. If an attacker creates such a large file, the Netty application crash.
### Details
A similar issue was previously reported in https://github.com/netty/netty/security/advisories/GHSA-xq3w-v528-46rv
This issue was fixed, but the fix was incomplete in that null-bytes were not counted against the input limit.
### PoC
The PoC is the same as for https://github.com/netty/netty/security/advisories/GHSA-xq3w-v528-46rv with the detail that the file should only contain null-bytes; 0x00.
When the null-bytes are encountered by the `InputStreamReader`, it will issue replacement characters in its charset decoding, which will fill up the line-buffer in the `BufferedReader.readLine()`, because the replacement character is not a line-break character.
### Impact
Impact is the same as https://github.com/netty/netty/security/advisories/GHSA-xq3w-v528-46rv
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CVE-2025-25193
GHSA-389x-839f-4rhx
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