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Debian: CVE-2020-14311: grub2 -- security update

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Debian: CVE-2020-14311: grub2 -- security update

Severity
4
CVSS
(AV:L/AC:L/Au:N/C:N/I:P/A:P)
Published
07/31/2020
Created
08/01/2020
Added
07/31/2020
Modified
08/07/2020

Description

There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow.

Solution(s)

  • debian-upgrade-grub2

References

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