SUSE: Grub2 Side-Channel Attack Advisory 2025:02724-1 CVE-2024-56738
suse
August 7, 2025
* bsc#1234959 Cross-References: * CVE-2024-56738
Summary
## 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: * SUSE Linux Enterprise Micro 5.1 zypper in -t patch SUSE-SUSE-MicroOS-5.1-2025-2724=1 ## Package List: * SUSE Linux Enterprise Micro 5.1 (aarch64 s390x x86_64) * grub2-2.04-150300.3.14.2 * grub2-debugsource-2.04-150300.3.14.2 * grub2-debuginfo-2.04-150300.3.14.2 * SUSE Linux Enterprise Micro 5.1 (noarch) * grub2-snapper-plugin-2.04-150300.3.14.2 * grub2-x86_64-efi-2.04-150300.3.14.2 * grub2-i386-pc-2.04-150300.3.14.2
Topics Covered
References
* bsc#1234959
Cross-
* 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:
* SUSE Linux Enterprise Micro 5.1
An update that solves one vulnerability can now be installed.
##
* https://www.suse.com/security/cve/CVE-2024-56738.html
* https://bugzilla.suse.com/show_bug.cgi?id=1234959
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Announcement ID: SUSE-SU-2025:02724-1
Release Date: 2025-08-07T09:01:39Z
Rating: moderate
Topics Covered
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