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CVE-2024-45779
4.1 MEDIUM
- CVSS version: 3.1
- Attack vector (AV): LOCAL
- Attack complexity (AC): HIGH
- Privileges required (PR): HIGH
- User interaction (UI): NONE
- Scope (S): UNCHANGED
- Confidentiality impact (C): NONE
- Integrity impact (I): HIGH
- Availability impact (A): NONE
Grub2: fs/bfs: integer overflow leads to heap oob read in the bfs parser
An integer overflow flaw was found in the BFS file system driver in grub2. When reading a file with an indirect extent map, grub2 fails to validate the number of extent entries to be read. A crafted or corrupted BFS filesystem may cause an integer overflow during the file reading, leading to a heap of bounds read. As a consequence, sensitive data may be leaked, or grub2 will crash.
References
- https://access.redhat.com/security/cve/CVE-2024-45779 x_refsource_REDHAT vdb-entry
- RHBZ#2345854 issue-tracking x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2024-45779 x_refsource_REDHAT vdb-entry
- RHBZ#2345854 issue-tracking x_refsource_REDHAT
- https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html
- https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html
- https://access.redhat.com/security/cve/CVE-2024-45779 x_refsource_REDHAT vdb-entry
- RHBZ#2345854 issue-tracking x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2024-45779 x_refsource_REDHAT vdb-entry
- RHBZ#2345854 issue-tracking x_refsource_REDHAT
- https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html
- RHBZ#2345854 issue-tracking x_refsource_REDHAT
- https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html
- https://access.redhat.com/security/cve/CVE-2024-45779 x_refsource_REDHAT vdb-entry
- https://access.redhat.com/security/cve/CVE-2024-45779 x_refsource_REDHAT vdb-entry
- RHBZ#2345854 issue-tracking x_refsource_REDHAT
- https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html
- https://access.redhat.com/security/cve/CVE-2024-45779 x_refsource_REDHAT vdb-entry
- RHBZ#2345854 issue-tracking x_refsource_REDHAT
- https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html
Affected products
grub2
- =<2.12
rhcos
Matching in nixpkgs
pkgs.grub2_pvgrub_image
PvGrub2 image for booting PV Xen guests
pkgs.grub2_pvhgrub_image
PvGrub2 image for booting PVH Xen guests
Package maintainers
-
@hehongbo Hongbo
-
@CertainLach Yaroslav Bolyukin <iam@lach.pw>
-
@SigmaSquadron Fernando Rodrigues <alpha@sigmasquadron.net>