vulnerability
Red Hat OpenShift: CVE-2025-0624: grub2: net: Out-of-bounds write in grub_net_search_config_file()
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:A/AC:M/Au:M/C:C/I:C/A:C) | Feb 19, 2025 | Apr 4, 2025 | Aug 11, 2025 |
Severity
7
CVSS
(AV:A/AC:M/Au:M/C:C/I:C/A:C)
Published
Feb 19, 2025
Added
Apr 4, 2025
Modified
Aug 11, 2025
Description
A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grub_strcpy() function. During this step, it fails to consider the environment variable length when allocating the internal buffer, resulting in an out-of-bounds write. If correctly exploited, this issue may result in remote code execution through the same network segment grub is searching for the boot information, which can be used to by-pass secure boot protections.
Solution
linuxrpm-upgrade-rhcos
References
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