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CVSS Score
-The GitHub patch adds a critical length check to _decryptRecord in tlsrecordlayer.py. Before the fix, the code proceeded to check padding (b[-1]) without validating if the buffer was empty after decryption/IV removal. This matches the CWE-119 description (buffer bounds violation) and the CVE's description of a crash via malformed messages. The commit message explicitly references fixing this IndexError scenario.
| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| tlslite | pip | < 0.4.9 | 0.4.9 |