CVE-2026-25061
HighSummary
tcpflow to demultiplekser pakietów TCP/IP. W wersjach do 1.61 w wifipcap występuje błąd w analizie elementów ramek zarządzających 802.11, który prowadzi do nieprawidłowego sprawdzenia długości w elemencie TIM, co może skutkować zapisem poza przydzieloną pamięcią.
Risk Assessment
Organizacja może być narażona na ataki typu DoS, a potencjalne wykonanie kodu zdalnego pozostaje niepewne. Brak znanych poprawek zwiększa ryzyko wykorzystania tej podatności.
Recommendation
Zaleca się monitorowanie aktualizacji oraz wdrożenie środków zabezpieczających, aby zminimalizować ryzyko ataków, dopóki nie zostaną wydane poprawki.
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Original NVD description (English source)
tcpflow is a TCP/IP packet demultiplexer. In versions up to and including 1.61, wifipcap parses 802.11 management frame elements and performs a length check on the wrong field when handling the TIM element. A crafted frame with a large TIM length can cause a 1-byte out-of-bounds write past `tim.bitmap[251]`. The overflow is small and DoS is the likely impact; code execution is potential, but still up in the air. The affected structure is stack-allocated in `handle_beacon()` and related handlers. As of time of publication, no known patches are available.

