CVE-2023-4693

CVE-2023-4693 : Out-of-bounds read in grub2’s NTFS filesystem driver can allow a physically present attacker to feed a crafted NTFS image and read arbitrary memory locations, leaking data such as memory contents or EFI variables. Connected advisories confirm the same CVE and identify a related wr...

CVE-2019-14865

Concrete details found: CVE-2019-14865 affects grub2, specifically the grub2-set-bootflag utility. Under resource pressure (RLIMIT), this can cause grubenv/grub2 configuration files to be truncated, leaving the system unbootable on subsequent reboots. Affected component: grub2-set-bootflag in gru...

CVE-2021-46705

CVE-2021-46705 affects grub2 (grub-once) in SUSE Linux Enterprise Server 15 SP4 and openSUSE Factory. The issue is an Insecure Temporary File vulnerability that lets local attackers truncate arbitrary files via grub-once/grub2. Affected versions are grub2 prior to 2.06-150400.7.1 on SLE 15 SP4, a...

CVE-2024-45778

CVE-2024-45778 affects grub2, caused by a stack overflow when reading a BFS filesystem. A crafted BFS image can trigger an uncontrolled loop and crash grub2, per the NVD entry. Likely impact is availability (HIGH), with local access required (attack vector LOCAL), low attack complexity and low pr...

CVE-2024-56738

CVE-2024-56738 details (Mode C): GNU GRUB (GRUB2) up to version 2.12 is affected because grub_crypto_memcmp is not implemented in constant time, enabling potential side-channel attacks. Connected Nessus entries for EulerOS/Virt show the same CVE-2024-56738 claim and reference. The description doe...