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| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| matrix-sydent | pip | < 1.0.3 | 1.0.3 |
| matrix-synapse | pip | < 0.99.3.1 | 0.99.3.1 |
The patches explicitly replace uses of random.choice() with SystemRandom().choice() in token generation functions. These functions (StoreInviteServlet._randomString, generateNumericTokenOfLength, generateAlphanumericTokenOfLength) directly handled authentication token generation using the insecure random module prior to patching. Runtime profiling would show these functions being called during token creation, making them key indicators of CVE-2019-11842 exploitation attempts.
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