SUSE-SU-2025:02706-1: moderate: Security update for grub2
SLE-SECURITY-UPDATES
null at suse.de
Tue Aug 5 12:30:49 UTC 2025
# Security update for grub2
Announcement ID: SUSE-SU-2025:02706-1
Release Date: 2025-08-05T10:08:33Z
Rating: moderate
References:
* bsc#1234959
Cross-References:
* CVE-2024-56738
CVSS scores:
* CVE-2024-56738 ( SUSE ): 5.7
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
* CVE-2024-56738 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
* CVE-2024-56738 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Products:
* openSUSE Leap 15.5
* SUSE Linux Enterprise Micro 5.5
An update that solves one vulnerability can now be installed.
## Description:
This update for grub2 fixes the following issues:
* CVE-2024-56738: Fixed side-channel attack due to not constant-time algorithm
in grub_crypto_memcmp (bsc#1234959)
## Patch Instructions:
To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
* openSUSE Leap 15.5
zypper in -t patch SUSE-2025-2706=1
* SUSE Linux Enterprise Micro 5.5
zypper in -t patch SUSE-SLE-Micro-5.5-2025-2706=1
## Package List:
* openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64 i586)
* grub2-branding-upstream-2.06-150500.29.53.1
* grub2-2.06-150500.29.53.1
* grub2-debuginfo-2.06-150500.29.53.1
* openSUSE Leap 15.5 (aarch64 s390x x86_64 i586)
* grub2-debugsource-2.06-150500.29.53.1
* openSUSE Leap 15.5 (noarch)
* grub2-x86_64-xen-extras-2.06-150500.29.53.1
* grub2-arm64-efi-extras-2.06-150500.29.53.1
* grub2-i386-pc-2.06-150500.29.53.1
* grub2-x86_64-xen-2.06-150500.29.53.1
* grub2-x86_64-efi-2.06-150500.29.53.1
* grub2-x86_64-xen-debug-2.06-150500.29.53.1
* grub2-s390x-emu-extras-2.06-150500.29.53.1
* grub2-x86_64-efi-extras-2.06-150500.29.53.1
* grub2-powerpc-ieee1275-2.06-150500.29.53.1
* grub2-i386-efi-2.06-150500.29.53.1
* grub2-snapper-plugin-2.06-150500.29.53.1
* grub2-powerpc-ieee1275-extras-2.06-150500.29.53.1
* grub2-i386-pc-debug-2.06-150500.29.53.1
* grub2-systemd-sleep-plugin-2.06-150500.29.53.1
* grub2-i386-efi-debug-2.06-150500.29.53.1
* grub2-i386-pc-extras-2.06-150500.29.53.1
* grub2-i386-xen-2.06-150500.29.53.1
* grub2-i386-xen-extras-2.06-150500.29.53.1
* grub2-i386-xen-debug-2.06-150500.29.53.1
* grub2-x86_64-efi-debug-2.06-150500.29.53.1
* grub2-i386-efi-extras-2.06-150500.29.53.1
* grub2-arm64-efi-debug-2.06-150500.29.53.1
* grub2-arm64-efi-2.06-150500.29.53.1
* grub2-powerpc-ieee1275-debug-2.06-150500.29.53.1
* openSUSE Leap 15.5 (s390x)
* grub2-s390x-emu-debug-2.06-150500.29.53.1
* grub2-s390x-emu-2.06-150500.29.53.1
* SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
* grub2-2.06-150500.29.53.1
* grub2-debuginfo-2.06-150500.29.53.1
* SUSE Linux Enterprise Micro 5.5 (noarch)
* grub2-x86_64-efi-2.06-150500.29.53.1
* grub2-powerpc-ieee1275-2.06-150500.29.53.1
* grub2-snapper-plugin-2.06-150500.29.53.1
* grub2-i386-pc-2.06-150500.29.53.1
* grub2-arm64-efi-2.06-150500.29.53.1
* grub2-x86_64-xen-2.06-150500.29.53.1
* SUSE Linux Enterprise Micro 5.5 (aarch64 s390x x86_64)
* grub2-debugsource-2.06-150500.29.53.1
* SUSE Linux Enterprise Micro 5.5 (s390x)
* grub2-s390x-emu-2.06-150500.29.53.1
## References:
* https://www.suse.com/security/cve/CVE-2024-56738.html
* https://bugzilla.suse.com/show_bug.cgi?id=1234959
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