CVE-2010-2960
HighSummary
Funkcja keyctl_session_to_parent w jądrze Linux 2.6.35.4 i wcześniejszych oczekuje istnienia określonego klucza sesji nadrzędnej, co pozwala lokalnym użytkownikom na spowodowanie odmowy usługi (odwołanie do wskaźnika NULL i awaria systemu) lub potencjalnie inne nieokreślone skutki za pomocą argumentu KEYCTL_SESSION_TO_PARENT w funkcji keyctl.
Risk Assessment
Podatność ta może prowadzić do awarii systemu, co wpływa na dostępność usług w organizacji. Istnieje również ryzyko nieokreślonych skutków, które mogą wpłynąć na bezpieczeństwo systemu.
Recommendation
Zaleca się aktualizację jądra Linux do wersji nowszej niż 2.6.35.4, aby usunąć tę podatność. Należy również monitorować systemy pod kątem nieautoryzowanego dostępu lokalnych użytkowników.
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Original NVD description (English source)
The keyctl_session_to_parent function in security/keys/keyctl.c in the Linux kernel 2.6.35.4 and earlier expects that a certain parent session keyring exists, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a KEYCTL_SESSION_TO_PARENT argument to the keyctl function.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

