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Ubuntu: (Multiple Advisories) (CVE-2018-18653): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2018-18653): Linux kernel vulnerabilities

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
10/25/2018
Created
03/19/2019
Added
12/07/2018
Modified
09/12/2020

Description

The Linux kernel, as used in Ubuntu 18.10 and when booted with UEFI Secure Boot enabled, allows privileged local users to bypass intended Secure Boot restrictions and execute untrusted code by loading arbitrary kernel modules. This occurs because a modified kernel/module.c, in conjunction with certain configuration options, leads to mishandling of the result of signature verification.

Solution(s)

  • ubuntu-upgrade-linux-image-4-18-0-1004-gcp
  • ubuntu-upgrade-linux-image-4-18-0-1005-kvm
  • ubuntu-upgrade-linux-image-4-18-0-1006-aws
  • ubuntu-upgrade-linux-image-4-18-0-1007-raspi2
  • ubuntu-upgrade-linux-image-4-18-0-12-generic
  • ubuntu-upgrade-linux-image-4-18-0-12-generic-lpae
  • ubuntu-upgrade-linux-image-4-18-0-12-lowlatency
  • ubuntu-upgrade-linux-image-4-18-0-12-snapdragon
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-snapdragon

References

  • USN-3821-1
  • USN-3821-2
  • USN-3832-1
  • USN-3833-1
  • USN-3835-1
  • USN-3836-1
  • USN-3836-2
  • USN-3847-1
  • USN-3847-2
  • USN-3847-3
  • USN-3871-1
  • USN-3871-3
  • USN-3871-4
  • USN-3871-5
  • USN-3880-1
  • USN-3880-2
  • CVE-2018-18653
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