CVE-2026-31963
HighSummary
HTSlib to biblioteka do odczytu i zapisu formatów plików bioinformatycznych. W wyniku błędu w dekodowaniu cech CRAM, możliwe jest nadpisanie pamięci poza końcem bufora, co prowadzi do przepełnienia bufora na stercie. Wykorzystanie tej podatności może skutkować awarią programu lub nieoczekiwanym nadpisywaniem danych.
Risk Assessment
W przypadku wykorzystania tej podatności, atakujący może uzyskać możliwość wykonania dowolnego kodu, co stwarza poważne zagrożenie dla integralności systemu i danych organizacji.
Recommendation
Zaleca się aktualizację biblioteki HTSlib do najnowszej wersji, aby usunąć tę podatność oraz monitorowanie systemów pod kątem nieautoryzowanych działań.
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Original NVD description (English source)
HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data. As one method of removing redundant data, CRAM uses reference-based compression so that instead of storing the full sequence for each alignment record it stores a location in an external reference sequence along with a list of differences to the reference at that location as a sequence of "features". When decoding these features, an out-by-one error in a test for CRAM features that appear beyond the extent of the CRAM record sequence could result in an invalid write of one attacker-controlled byte beyond the end of a heap buffer. Exploiting this bug causes a heap buffer overflow. If a user opens a file crafted to exploit this issue, it could lead to the program crashing, or overwriting of data and heap structures in ways not expected by the program. It may be possible to use this to obtain arbitrary code execution. Versions 1.23.1, 1.22.2 and 1
Vulnerability data from NVD (NIST) · CISA KEV · EPSS