SB2025101614 - Anolis OS update for grub2

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Main Vulnerability Database SB2025101614

SB2025101614 - Anolis OS update for grub2

Published: October 16, 2025

Security Bulletin ID SB2025101614
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Physical access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Observable discrepancy (CVE-ID: CVE-2024-56738)

CWE-ID: CWE-203 - Observable discrepancy

CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows an attacker to bypass implemented security restrictions.

The vulnerability exists due to software does not use a constant-time algorithm for grub_crypto_memcmp. An attacker with physical access to the system can perform side-channel attacks to bypass implemented security restrictions and escalate privileges on the system. 


2) Out-of-bounds write (CVE-ID: CVE-2025-0624)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within the grub_net_search_config_file() function. A local user can trigger an out-of-bounds write and execute arbitrary code on the system.


Remediation

Install update from vendor's website.

References