Liphetolelo tse ncha tsa Samba 4.14.4, 4.13.8 le 4.12.15 tse nang le bothata ba ho lokisa

Litokollo tse lokisoang tsa sephutheloana sa Samba 4.14.4, 4.13.8 le 4.12.15 li lokiselitsoe ho felisa ts'oaetso (CVE-2021-20254), eo maemong a mangata e ka lebisang ho senyeha ha ts'ebetso ea smbd, empa e mpe ka ho fetisisa. scenario monyetla oa ho fihlella ntle le tumello ho lifaele le ho hlakola lifaele karohanong ea marang-rang ke mosebelisi ea se nang tokelo.

Kotsi e bakoa ke phoso e teng ho sids_to_unixids() ts'ebetso e etsang hore data e baloe sebakeng se kantle ho moeli oa buffer ha ho fetoleloa SIDs (Windows Security Identifier) ​​ho GID (Unix Group ID). Bothata bo etsahala ha ntho e mpe e eketsoa ho SID ho cache ea 'mapa ea GID. Baetsi ba Samba ba ne ba sitoa ho tseba maemo a ka tšeptjoang le a ka phetoang hore ho be le ts'oaetso, empa mofuputsi ea khethileng ho ba kotsing o lumela hore bothata bo ka sebelisoa hampe ho hlakola lifaele ho seva sa faele ntle le litokelo tse nepahetseng tsa ho etsa ts'ebetso ena.

Source: opennet.ru

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