SB20220201108 - SUSE update for the Linux Kernel (Live Patch 21 for SLE 12 SP5)

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Main Vulnerability Database SB20220201108

SB20220201108 - SUSE update for the Linux Kernel (Live Patch 21 for SLE 12 SP5)

Published: February 1, 2022 Updated: June 28, 2025

Security Bulletin ID SB20220201108
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Adjecent network
Highest impact Data manipulation

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Cryptographic Issues (CVE-ID: CVE-2020-3702)

The vulnerability allows a remote attacker to gain access top sensitive information.

The vulnerability exists due to improper input validation in WIFI driver(Krook). A remote attacker can temporary disable WPA2 or the WPA/WPA2 mixed-mode encryption and intercept traffic in clear text.


2) Buffer overflow (CVE-ID: CVE-2021-42739)

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

The vulnerability exists due to a boundary within the firewire subsystem in the Linux kernel in drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c files. A local privileged user can run a specially crafted program tat calls avc_ca_pmt() function to trigger memory corruption and execute arbitrary code with elevated privileges.


Remediation

Install update from vendor's website.

References