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Ubuntu: USN-4979-1 (CVE-2021-33033): Linux kernel vulnerabilities

Severity:
2
CVSS:
(AV:L/AC:L/Au:N/C:N/I:P/A:N)
Published:
05/14/2021
Created:
06/04/2021
Added:
06/03/2021
Modified:
06/03/2021

Description:

The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value.'

Solution(s)


  • ubuntu-upgrade-
  • ubuntu-upgrade-4-15-0-1072-60
  • ubuntu-upgrade-4-15-0-1103-110-16-04-1
  • ubuntu-upgrade-4-15-0-1103-94
  • ubuntu-upgrade-4-15-0-1115-88
  • ubuntu-upgrade-4-15-0-144-140
  • ubuntu-upgrade-available
  • ubuntu-upgrade-desktop
  • ubuntu-upgrade-infra
  • ubuntu-upgrade-linux-image-4-15-0-1072-oracle
  • ubuntu-upgrade-linux-image-4-15-0-1092-kvm
  • ubuntu-upgrade-linux-image-4-15-0-1100-gcp
  • ubuntu-upgrade-linux-image-4-15-0-1103-aws
  • ubuntu-upgrade-linux-image-4-15-0-1103-snapdragon
  • ubuntu-upgrade-linux-image-4-15-0-1115-azure
  • ubuntu-upgrade-linux-image-4-15-0-144-generic
  • ubuntu-upgrade-linux-image-4-15-0-144-generic-lpae
  • ubuntu-upgrade-linux-image-4-15-0-144-lowlatency
  • ubuntu-upgrade-linux-image-aws-lts-18-04
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-lts-18-04
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-gcp-lts-18-04
  • 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-oracle-lts-18-04
  • ubuntu-upgrade-linux-image-snapdragon
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-or
  • ubuntu-upgrade-ua
  • ubuntu-upgrade-with

Reference(s)

  • USN-4945-1
  • USN-4945-2
  • USN-4948-1
  • USN-4977-1
  • USN-4979-1
  • CVE-2021-33033
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