SB2022051055 - SUSE update for the Linux Kernel (Live Patch 29 for SLE 15)

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Main Vulnerability Database SB2022051055

SB2022051055 - SUSE update for the Linux Kernel (Live Patch 29 for SLE 15)

Published: May 10, 2022 Updated: June 18, 2023

Security Bulletin ID SB2022051055
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) Security features bypass (CVE-ID: CVE-2021-39713)

CWE-ID: CWE-254 - Security Features

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 application to escalate privileges on the system.

The vulnerability exists due to multiple issues in Qdisc implementation related to rcu read lock. A local application can execute arbitrary code with elevated privileges.


2) Use-after-free (CVE-ID: CVE-2022-1011)

CWE-ID: CWE-416 - Use After Free

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:P/U:Clear


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

The vulnerability exists due to a use-after-free error in the write() function of FUSE filesystem. A local user can retireve (partial) /etc/shadow hashes and execute arbitrary code with elevated privileges.


Remediation

Install update from vendor's website.

References