SB2025080130 - Anolis OS update for kernel:4.18

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Main Vulnerability Database SB2025080130

SB2025080130 - Anolis OS update for kernel:4.18

Published: August 1, 2025

Security Bulletin ID SB2025080130
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) NULL pointer dereference (CVE-ID: CVE-2022-49977)

CWE-ID: CWE-476 - NULL Pointer Dereference

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


The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the ftrace_startup() function in kernel/trace/ftrace.c. A local user can perform a denial of service (DoS) attack.


2) Buffer overflow (CVE-ID: CVE-2025-21905)

CWE-ID: CWE-119 - Memory corruption

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


The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory corruption within the iwl_parse_tlv_firmware() function in drivers/net/wireless/intel/iwlwifi/iwl-drv.c. A local user can perform a denial of service (DoS) attack.


3) Input validation error (CVE-ID: CVE-2025-21919)

CWE-ID: CWE-20 - Improper input validation

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


The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the child_cfs_rq_on_list() function in kernel/sched/fair.c. A local user can perform a denial of service (DoS) attack.


4) Improper locking (CVE-ID: CVE-2025-38234)

CWE-ID: CWE-667 - Improper Locking

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


The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the find_lowest_rq() and find_lock_lowest_rq() functions in kernel/sched/rt.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References