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Ubuntu: (Multiple Advisories) (CVE-2018-18445): Linux kernel (Azure) vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2018-18445): Linux kernel (Azure) vulnerabilities

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
10/17/2018
Created
03/19/2019
Added
12/07/2018
Modified
08/25/2021

Description

In the Linux kernel 4.14.x, 4.15.x, 4.16.x, 4.17.x, and 4.18.x before 4.18.13, faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandles 32-bit right shifts.

Solution(s)

  • ubuntu-upgrade-linux-image-4-15-0-1026-gcp
  • ubuntu-upgrade-linux-image-4-15-0-1028-kvm
  • ubuntu-upgrade-linux-image-4-15-0-1030-oem
  • ubuntu-upgrade-linux-image-4-15-0-1030-raspi2
  • ubuntu-upgrade-linux-image-4-15-0-1031-aws
  • ubuntu-upgrade-linux-image-4-15-0-1036-azure
  • ubuntu-upgrade-linux-image-4-15-0-43-generic
  • ubuntu-upgrade-linux-image-4-15-0-43-generic-lpae
  • ubuntu-upgrade-linux-image-4-15-0-43-lowlatency
  • ubuntu-upgrade-linux-image-4-15-0-43-snapdragon
  • 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-aws-hwe
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-16-04
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-hwe-16-04
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-snapdragon

References

  • USN-3776-1
  • USN-3776-2
  • USN-3797-1
  • USN-3797-2
  • USN-3832-1
  • USN-3835-1
  • USN-3846-1
  • USN-3847-1
  • USN-3847-2
  • USN-3847-3
  • USN-3848-1
  • USN-3848-2
  • USN-3849-1
  • USN-3849-2
  • CVE-2018-18445
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