SB2025061346 - openEuler 20.03 LTS SP4 update for kernel

Description

This security bulletin contains information about 5 secuirty vulnerabilities.

1) Buffer overflow (CVE-ID: CVE-2022-21546)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the scsi subsystem within the OS kernel. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

2) Out-of-bounds read (CVE-ID: CVE-2022-49870)

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

The vulnerability exists due to an out-of-bounds read error within the include/uapi/linux/capability.h. A local user can perform a denial of service (DoS) attack.

3) Improper locking (CVE-ID: CVE-2023-53051)

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

The vulnerability exists due to improper locking within the crypt_io_from_node() function in drivers/md/dm-crypt.c. A local user can perform a denial of service (DoS) attack.

4) Use-after-free (CVE-ID: CVE-2025-37834)

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

The vulnerability exists due to a use-after-free error within the mm/vmscan.c. A local user can escalate privileges on the system.

5) Improper error handling (CVE-ID: CVE-2025-37995)

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

The vulnerability exists due to improper error handling within the module_kobj_release() function in kernel/params.c. A local user can perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2025-1626