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* TLS: avoid sub-classification for RDP flows (#2769)Ivan Nardi2025-03-14
| | | | | | | | | | | | | | | | These flows are already classified as TLS.RDP. This change also fix a memory leak ``` Direct leak of 62 byte(s) in 1 object(s) allocated from: #0 0x5883d762429f in __interceptor_malloc /src/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:68:3 #1 0x5883d76fe46a in ndpi_malloc ndpi/src/lib/ndpi_memory.c:57:46 #2 0x5883d76fe46a in ndpi_strdup ndpi/src/lib/ndpi_memory.c:110:13 #3 0x5883d77adcd6 in ndpi_compute_ja4 ndpi/src/lib/protocols/tls.c:2298:46 #4 0x5883d77ab2ec in processClientServerHello ndpi/src/lib/protocols/tls.c:3314:10 #5 0x5883d77a4c51 in processTLSBlock ndpi/src/lib/protocols/tls.c:1319:5 ``` Found by oss-fuzz. See: https://oss-fuzz.com/testcase-detail/5244512192757760
* TLS: heuristics: fix memory allocations (#2577)Ivan Nardi2024-09-30
| | | | Allocate heuristics state only if really needed. Fix memory leak (it happened with WebSocket traffic on port 443)
* Bittorrent: improve detection of UTPv1 and avoid false positivesNardi Ivan2024-09-03
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* Viber: add detection of voip calls and avoid false positives (#2434)Ivan Nardi2024-05-11
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* Raknet/RTP: avoid Raknet false positives and harden RTP heuristic (#2427)Ivan Nardi2024-05-09
| | | | | | | | | There is some overlap between RTP and Raknet detection: give precedence to RTP logic. Consequences: * Raknet might require a little bit more packets for some flows (not a big issue) * some very small (1-2 pkts) Raknet flows are not classified (not sure what do do about that..)
* Protobuf: fix false positives (#2428)Ivan Nardi2024-05-09