vulnerability
Ubuntu: USN-6355-1 (CVE-2021-3696): GRUB2 vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:M/Au:N/C:C/I:C/A:C) | Jul 6, 2022 | Sep 18, 2023 | Oct 23, 2024 |
Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
Jul 6, 2022
Added
Sep 18, 2023
Modified
Oct 23, 2024
Description
A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it's very complex to an attacker control the encoding and positioning of corrupted Huffman entries to achieve results such as arbitrary code execution and/or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.
Solution(s)
ubuntu-upgrade-grub-efi-amd64ubuntu-upgrade-grub-efi-amd64-binubuntu-upgrade-grub-efi-amd64-signedubuntu-upgrade-grub-efi-arm64ubuntu-upgrade-grub-efi-arm64-binubuntu-upgrade-grub-efi-arm64-signedubuntu-upgrade-shimubuntu-upgrade-shim-signed
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