{"id":98993,"date":"2021-02-02T20:42:15","date_gmt":"2021-02-02T18:42:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-sistemnom-vyzove-futex-obnaruzhena-i-ustranena-vozmozhnost-vypolneniya-polzovatelskogo-koda-v-kontekste-yadra"},"modified":"2021-02-02T20:42:15","modified_gmt":"2021-02-02T18:42:15","slug":"v-sistemnom-vyzove-futex-obnaruzhena-i-ustranena-vozmozhnost-vypolneniya-polzovatelskogo-koda-v-kontekste-yadra","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/v-sistemnom-vyzove-futex-obnaruzhena-i-ustranena-vozmozhnost-vypolneniya-polzovatelskogo-koda-v-kontekste-yadra","title":{"rendered":"S\u00fcsteemikutses futex avastati ja k\u00f5rvaldasid v\u00f5imalus kasutajakoodi k\u00e4ivitamiseks tuuma kontekstis.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Futex (kiire kasutajapoolne mutex) s\u00fcsteemik\u00f5ne rakenduses avastati ja k\u00f5rvaldatakse m\u00e4lusteekide kasutamine p\u00e4rast vabastamist. See v\u00f5imaldas r\u00fcndajal t\u00e4ita oma koodi tuuma kontekstis, mis omakorda t\u00f5i kaasa k\u00f5ik vajalikud tagaj\u00e4rjed, arvestades turvalisust. Haavatavus leidus veahalduri koodis.<\/p>\n

<\/p>\n

Parandus<\/a> Selle haavatavuse parandamine ilmus Linuxi p\u00f5hikoodeksisse 28. jaanuaril ja j\u00f5udis paar p\u00e4eva tagasi kernalitesse 5.10.12, 5.4.94, 4.19.172, 4.14.218.<\/p>\n

<\/noindex><\/noindex><\/p>\n

Antud paranduse arutamise k\u00e4igus esitati oletusi, et see haavatavus eksisteerib k\u00f5igis kernalites alates aastast 2008:<\/p>\n

<\/p>\n

https:\/\/www.openwall.com\/lists\/oss-security\/2021\/01\/29\/3<\/a><\/p>\n

<\/noindex>
\nFWIW, see commit sisaldab:<\/p>\n

Parandused: 1b7558e457ed (\"futexid: parandada vigade k\u00e4sitlemine futex_lock_pi-s\")<\/p>\n

ja see teine commit on aastast 2008. Seega t\u00f5en\u00e4oliselt k\u00f5ik currently
\ntoetatud Linuxi levitused ja rakendused on m\u00f5jutatud, kui midagi
\nteist ei ole teinud antud probleemi m\u00f5nes kerneliversioonis.<\/p>\n

Allikas: linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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