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Ubuntu: (CVE-2021-20226): linux vulnerability

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Ubuntu: (CVE-2021-20226): linux vulnerability

Severity
6
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:C)
Published
02/23/2021
Created
11/21/2024
Added
11/19/2024
Modified
11/19/2024

Description

A use-after-free flaw was found in the io_uring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system The issue results from the lack of validating the existence of an object prior to performing operations on the object by not incrementing the file reference counter while in use. The highest threat from this vulnerability is to data integrity, confidentiality and system availability.

Solution(s)

  • ubuntu-upgrade-linux
  • ubuntu-upgrade-linux-aws
  • ubuntu-upgrade-linux-azure
  • ubuntu-upgrade-linux-gcp
  • ubuntu-upgrade-linux-hwe-5-8
  • ubuntu-upgrade-linux-kvm
  • ubuntu-upgrade-linux-oracle
  • ubuntu-upgrade-linux-raspi
  • ubuntu-upgrade-linux-riscv

References

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