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ÕâЩ©¶´Ô´ÓÚÒ»¸öÃûΪnetworkd-dispatcherµÄsystemd×é¼þ£¬¸Ã×é¼þÊÇÓÃÓÚ systemd-networkd Á¬½Ó״̬¸ü¸ÄµÄµ÷Öη¨Ê½ÊØ»¤½ø³Ì¡£

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l  Time-of-check-time-of-use£¨TOCTOU£©¾ºÕùÌõ¼þ£¨CVE-2022-29800£©£º½Å±¾±»·¢ÏÖºÍËüÃDZ»ÔËÐÐÖ®¼äÓÐÒ»¶¨Ê±¼ä¡£¿ÉÒÔÀûÓôË©¶´½«networkd-dispatcher ÈÏΪÊôÓÚroot µÄ½Å±¾Ì滻Ϊ²»ÊôÓÚroot µÄ½Å±¾¡£

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networkd-dispatcher < 2.2.1-0

 

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ĿǰÒѾ­ÐÞ¸´ÁËÕâЩ©¶´£¬¿ÉÒÔÉý¼¶µ½×îа汾networkd-dispatcher 2.2.1-0¡£

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https://gitlab.com/craftyguy/networkd-dispatcher

https://manpages.ubuntu.com/manpages/focal/man8/networkd-dispatcher.8.html


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https://www.microsoft.com/security/blog/2022/04/26/microsoft-finds-new-elevation-of-privilege-linux-vulnerability-nimbuspwn/

https://www.bleepingcomputer.com/news/security/new-nimbuspwn-linux-vulnerability-gives-hackers-root-privileges/

https://thehackernews.com/2022/04/microsoft-discovers-new-privilege.html

 

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