CVE-2010-2943
HighSummary
Implementacja xfs w jądrze Linuxa przed wersją 2.6.35 nie sprawdza drzew alokacji inode przed odczytem buforów inode, co pozwala zdalnym uwierzytelnionym użytkownikom na odczytanie usuniętych plików lub odczyt lub nadpisanie bloków dyskowych, które są obecnie przypisane do aktywnego pliku, ale wcześniej były przypisane do usuniętego pliku, poprzez dostęp do przestarzałego uchwytu pliku NFS.
Risk Assessment
Organizacja może być narażona na nieautoryzowany dostęp do danych, co może prowadzić do wycieku informacji lub niezamierzonego nadpisania ważnych plików. To stwarza ryzyko naruszenia poufności i integralności danych.
Recommendation
Zaleca się aktualizację jądra Linuxa do wersji 2.6.35 lub nowszej, aby usunąć tę podatność. Dodatkowo, warto monitorować dostęp do systemów plików NFS i wdrożyć odpowiednie kontrole dostępu.
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Original NVD description (English source)
The xfs implementation in the Linux kernel before 2.6.35 does not look up inode allocation btrees before reading inode buffers, which allows remote authenticated users to read unlinked files, or read or overwrite disk blocks that are currently assigned to an active file but were previously assigned to an unlinked file, by accessing a stale NFS filehandle.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

