CVE-2009-1894
HighSummary
W PulseAudio w wersjach 0.9.9, 0.9.10 i 0.9.14 występuje warunek wyścigu, który pozwala lokalnym użytkownikom na uzyskanie podwyższonych uprawnień. Problem ten jest związany z tworzeniem twardego linku oraz ustawieniem LD_BIND_NOW na 1, a następnie wywołaniem execv na celu symlink /proc/self/exe.
Risk Assessment
Organizacja może być narażona na nieautoryzowany dostęp do systemu przez lokalnych użytkowników, co może prowadzić do eskalacji uprawnień i potencjalnych szkód w infrastrukturze IT.
Recommendation
Zaleca się aktualizację PulseAudio do najnowszej wersji, aby usunąć tę podatność oraz monitorowanie systemów w celu wykrycia nieautoryzowanych działań użytkowników.
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Original NVD description (English source)
Race condition in PulseAudio 0.9.9, 0.9.10, and 0.9.14 allows local users to gain privileges via vectors involving creation of a hard link, related to the application setting LD_BIND_NOW to 1, and then calling execv on the target of the /proc/self/exe symlink.

