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Product · GNU Project

GNU GRUB

4 known vulnerabilities.

GNU GRUB at a glance

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Most common weaknesses

4 results · Feed

  • Medium 6.4

    There's a use-after-free vulnerability in grub_cmd_chainloader() function

    There's a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up operating systems that doesn't support multiboot and do not have direct support from GRUB2. When executing chainloader more than once a use-a…

  • Medium 6.7

    The GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such …

  • High 8.1

    Out-of-bounds write when handling split HTTP headers

    Out-of-bounds write when handling split HTTP headers; When handling split HTTP headers, GRUB2 HTTP code accidentally moves its internal data buffer point by one position. This can lead to a out-of-bound write further when parsing the HTTP request, writing a N…

  • High 8.1

    Integer underflow in grub_net_recv_ip4_packets

    Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in grub_net_recv_ip4_packets() function on rsm->total_len value. Under certain circumstances the total_len value may end up wrapping around to a sma…