SB2020101527 - Fedora 32 update for kernel

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Main Vulnerability Database SB2020101527

SB2020101527 - Fedora 32 update for kernel

Published: October 15, 2020 Updated: April 25, 2025

Security Bulletin ID SB2020101527
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Adjecent network
Highest impact Code execution

Breakdown by Severity

Medium 67% Low 33%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2020-16119)

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

The vulnerability exists due to a use-after-free error caused by the reuse of a DCCP socket with an attached dccps_hc_tx_ccid object as a listener. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.


2) Input validation error (CVE-ID: CVE-2020-12351)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient validation of user-supplied input within the BlueZ implementation in Linux kernel. A remote attacker on the local network can pass specially crafted input to the application and execute arbitrary code on the system.


3) Improper access control (CVE-ID: CVE-2020-12352)

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

The vulnerability exists due to improper access restrictions in BlueZ implementation in Linux kernel. A remote attacker on the local network can pass specially crafted input to the application and gain access to sensitive information.


Remediation

Install update from vendor's website.

References