SB2024032267 - openEuler 22.03 LTS SP3 update for kernel

Description

This security bulletin contains information about 5 secuirty vulnerabilities.

1) Deadlock (CVE-ID: CVE-2021-46987)

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

The vulnerability exists due to a deadlock when cloning inline extent with low amount of free metadata space in btrfs. A local user can perform a denial of service (DoS) attack.

2) Use-after-free (CVE-ID: CVE-2023-52447)

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

The vulnerability exists due to a use-after-free error in bpf. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

3) NULL pointer dereference (CVE-ID: CVE-2023-52448)

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

The vulnerability exists due to a NULL pointer dereference error in gfs2_rgrp_dump() function. A local user can perform a denial of service (DoS) attack.

4) NULL pointer dereference (CVE-ID: CVE-2023-52449)

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

The vulnerability exists due to a NULL pointer dereference error in mtd. A local user can perform a denial of service (DoS) attack.

5) Improper Initialization (CVE-ID: CVE-2023-52452)

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

The vulnerability exists due to improper initialization in bpf. A local user can run a specially crafted application to execute arbitrary code with escalated privileges on the system.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1301