SB2020100613 - Denial of service on Linux kernel

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Main Vulnerability Database SB2020100613

SB2020100613 - Denial of service on Linux kernel

Published: October 6, 2020 Updated: December 13, 2020

Security Bulletin ID SB2020100613
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Infinite loop (CVE-ID: CVE-2020-25641)

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

The vulnerability exists due to incorrect implementation of biovecs in Linux kernel. A zero-length biovec request issued by the block subsystem could cause the kernel to enter an infinite loop, causing a denial of service. A local user can issue requests to a block device and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References