SB2022080563 - openEuler update for kernel

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Main Vulnerability Database SB2022080563

SB2022080563 - openEuler update for kernel

Published: August 5, 2022

Security Bulletin ID SB2022080563
CSH 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 vulnerabilities.


1) Out-of-bounds read (CVE-ID: CVE-2022-1508)

CWE-ID: CWE-125 - Out-of-bounds read

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


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

The vulnerability exists due to an out-of-bounds read error within the io_read() and iov_iter_reexpand() functions in fs/io_uring.c. A local user can access sensitive information or perform a denial of service (DoS) attack.


2) Out-of-bounds write (CVE-ID: CVE-2021-33655)

CWE-ID: CWE-787 - Out-of-bounds write

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


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

The vulnerability exists due to a boundary error in FBIOPUT_VSCREENINFO IOCTL. A local user can trigger an out-of-bounds write error and execute arbitrary code with elevated privileges.


Remediation

Install update from vendor's website.

References