Advisory Published
CVE Published

CVE-2024-1048: Grub2: grub2-set-bootflag can be abused by local (pseudo-)users

First published: Thu Jan 04 2024(Updated: )

A flaw was found in the grub2-set-bootflag utility of grub2. After the fix of <a href="https://access.redhat.com/security/cve/CVE-2019-14865">CVE-2019-14865</a>, grub2-set-bootflag will create a temporary file with the new grubenv content and rename it to the original grubenv file. If the program is killed before the rename operation, the temporary file will not be removed and may fill the filesystem when invoked multiple times, resulting in a filesystem out of free inodes or out of free blocks. Reference: <a href="https://www.openwall.com/lists/oss-security/2024/02/06/3">https://www.openwall.com/lists/oss-security/2024/02/06/3</a>

Credit: secalert@redhat.com

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