Linux Security
    Linux Security
    Linux Security

    GRUB2 Boot Failure Issues Fixed in Debian and Ubuntu, Update Now

    Date
    569
    Posted By
    LS Hmepg 337x500 32

    The recent GRUB2 patches that were released to mitigate critical BootHole vulnerabilities also caused boot failure issues for some users. Luckily, fixes for these regressions have started appearing for some distros, including Debian and Ubuntu.

     Last week, I was reporting on the BootHole vulnerability (and some other seven flaws) found in the GRUB2 bootloader, which is used by almost all GNU/Linux distributions out there. The issues opened up systems using Secure Boot to attacks, allowing local attackers to bypass UEFI Secure Boot restrictions and execute arbitrary code.

    Due to a highly coordinated effort between the security researchers who discovered the vulnerability and Linux OS maintainers, most GNU/Linux distributions were able to provide patches for their users. However, for some, these patches broke the Secure Boot implementation and left people with unbootable systems.

    LinuxSecurity Poll

    Which aspect of server security are you most interested in learning more about?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /main-polls/38-which-aspect-of-server-security-are-you-most-interested-in-learning-more-about?task=poll.vote&format=json
    38
    radio
    [{"id":"131","title":"Preventing information leakage","votes":"1","type":"x","order":"1","pct":100,"resources":[]},{"id":"132","title":"Firewall considerations","votes":"0","type":"x","order":"2","pct":0,"resources":[]},{"id":"133","title":"Permissions ","votes":"0","type":"x","order":"3","pct":0,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350


    VIEW MORE POLLS

    bottom 200

    Please enable / Bitte aktiviere JavaScript!
    Veuillez activer / Por favor activa el Javascript![ ? ]

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.