vulnerability
Ubuntu: (Multiple Advisories) (CVE-2020-14311): GRUB 2 vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:L/Au:N/C:N/I:P/A:P) | Jul 29, 2020 | Aug 5, 2020 | Aug 18, 2025 |
Severity
4
CVSS
(AV:L/AC:L/Au:N/C:N/I:P/A:P)
Published
Jul 29, 2020
Added
Aug 5, 2020
Modified
Aug 18, 2025
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.
Solutions
ubuntu-upgrade-grub-efi-amd64-binubuntu-upgrade-grub-efi-amd64-signedubuntu-upgrade-grub-efi-arm-binubuntu-upgrade-grub-efi-arm64-binubuntu-upgrade-grub-efi-arm64-signedubuntu-upgrade-grub-efi-ia32-bin
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