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Ubuntu: USN-5413-1 (CVE-2021-4157): Linux kernel vulnerabilities

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Ubuntu: USN-5413-1 (CVE-2021-4157): Linux kernel vulnerabilities

Severity
7
CVSS
(AV:A/AC:M/Au:S/C:C/I:C/A:C)
Published
03/25/2022
Created
05/14/2022
Added
05/12/2022
Modified
06/08/2022

Description

An out of memory bounds write flaw (1 or 2 bytes of memory) in the Linux kernel NFS subsystem was found in the way users use mirroring (replication of files with NFS). A user, having access to the NFS mount, could potentially use this flaw to crash the system or escalate privileges on the system.

Solution(s)

  • ubuntu-upgrade-linux-image-4-4-0-1105-kvm
  • ubuntu-upgrade-linux-image-4-4-0-1140-aws
  • ubuntu-upgrade-linux-image-4-4-0-224-generic
  • ubuntu-upgrade-linux-image-4-4-0-224-lowlatency
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-lts-xenial
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-lts-xenial
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-lts-xenial

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