SB20240312165 - openEuler 20.03 LTS SP1 update for kernel

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Use-after-free (CVE-ID: CVE-2023-51779)

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

The vulnerability exists due to a use-after-free error when handling bt_sock_ioctl in the Bluetooth subsystem. A local user can trigger a use-after-free error and execute arbitrary code on the system.

2) Race condition (CVE-ID: CVE-2023-51780)

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

The vulnerability exists due to a race condition in the ATM (Asynchronous Transfer Mode) subsystem in Linux kernel. A local user can exploit the race and escalate privileges on the system.

3) Race condition (CVE-ID: CVE-2023-51781)

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

The vulnerability exists due to a race condition in the Appletalk subsystem in Linux kernel. A local user can exploit the race and escalate privileges on the system.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1083