SB2022081924 - openEuler 20.03 LTS SP3 update for kernel

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Main Vulnerability Database SB2022081924

SB2022081924 - openEuler 20.03 LTS SP3 update for kernel

Published: August 19, 2022

Security Bulletin ID SB2022081924
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2022-36123)

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

The vulnerability exists due to Linux kernel lacks a certain clear operation for the block starting symbol (.bss). A local user on the Xen PV guest OS can perform a denial of service attack or escalate privileges on the guest OS.


2) Out-of-bounds write (CVE-ID: CVE-2022-20369)

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

The vulnerability exists due to a boundary error within the v4l2_m2m_querybuf() function in v4l2-mem2mem.c. A local user can trigger ab out-of-bounds write and execute arbitrary code with elevated privileges.


Remediation

Install update from vendor's website.

References