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openSUSE: grub2 Important Update CVE-2024-56738 DoS 2025:20163-1

opensuse
Calendar Grey December 17, 2025
Dist Opensuse Esm H88
Critical updates for openSUSE's grub2 fix important vulnerabilities and bugs for enhanced security.
An update that solves 7 vulnerabilities and has 14 bug fixes can now be installed.

Description

This update for grub2 fixes the following issues:

Changes in grub2:

- CVE-2025-54771: Fixed grub_file_close() does not properly controls the fs refcount (bsc#1252931)

- CVE-2025-54770: Fixed missing unregister call for net_set_vlan command may lead to use-after-free (bsc#1252930)

- CVE-2025-61662: Fixed missing unregister call for gettext command may lead to use-after-free (bsc#1252933)

- CVE-2025-61663: Fixed missing unregister call for normal commands may lead to use-after-free (bsc#1252934)

- CVE-2025-61664: Fixed missing unregister call for normal_exit command may lead to use-after-free (bsc#1252935)

- CVE-2025-61661: Fixed out-of-bounds write in grub_usb_get_string() function (bsc#1252932)

- Bump upstream SBAT generation to 6

- Fix "sparse file not allowed" error after grub2-reboot (bsc#1245738)

- Fix PowerPC network boot prefix to correctly locate grub.cfg (bsc#1249385)

- turn off page flipping for i386-pc using VBE video backend (bsc#1245636)

- Fix boot hangs in setting...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory buffer overflow important OpenSUSE use-after-free grub2

Patch

Package List

- openSUSE Leap 16.0:

grub2-2.12-160000.3.1

grub2-arm64-efi-2.12-160000.3.1

grub2-arm64-efi-bls-2.12-160000.3.1

grub2-arm64-efi-debug-2.12-160000.3.1

grub2-arm64-efi-extras-2.12-160000.3.1

grub2-branding-upstream-2.12-160000.3.1

grub2-common-2.12-160000.3.1

grub2-i386-pc-2.12-160000.3.1

grub2-i386-pc-debug-2.12-160000.3.1

grub2-i386-pc-extras-2.12-160000.3.1

grub2-powerpc-ieee1275-2.12-160000.3.1

grub2-powerpc-ieee1275-debug-2.12-160000.3.1

grub2-powerpc-ieee1275-extras-2.12-160000.3.1

grub2-s390x-emu-2.12-160000.3.1

grub2-s390x-emu-debug-2.12-160000.3.1

grub2-s390x-emu-extras-2.12-160000.3.1

grub2-snapper-plugin-2.12-160000.3.1

grub2-systemd-sleep-plugin-2.12-160000.3.1

grub2-x86_64-efi-2.12-160000.3.1

grub2-x86_64-efi-bls-2.12-160000.3.1

grub2-x86_64-efi-debug-2.12-160000.3.1

grub2-x86_64-efi-extras-2.12-160000.3.1

grub2-x86_64-xen-2.12-160000.3.1

grub2-x86_64-xen-debug-2.12-160000.3.1

grub2-x86_64-xen-extras-2.12-160000.3.1

References

* bsc#1234959

* bsc#1245636

* bsc#1245738

* bsc#1245953

* bsc#1246231

* bsc#1247242

* bsc#1249088

* bsc#1249385

* bsc#1252930

* bsc#1252931

* bsc#1252932

* bsc#1252933

* bsc#1252934

* bsc#1252935

References:

* https://www.suse.com/security/cve/CVE-2024-56738.html

* https://www.suse.com/security/cve/CVE-2025-54770.html

* https://www.suse.com/security/cve/CVE-2025-54771.html

* https://www.suse.com/security/cve/CVE-2025-61661.html

* https://www.suse.com/security/cve/CVE-2025-61662.html

* https://www.suse.com/security/cve/CVE-2025-61663.html

* https://www.suse.com/security/cve/CVE-2025-61664.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2025:20163-1
Rating: important
Affected Products: openSUSE Leap 16.0 -------------------------------------------------------------

Topics%20covered

Topics Covered

security advisory buffer overflow important OpenSUSE use-after-free grub2

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