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Ubuntu: (Multiple Advisories) (CVE-2020-25671): Linux kernel (OEM) vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2020-25671): Linux kernel (OEM) vulnerabilities

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
04/15/2021
Created
05/14/2021
Added
05/12/2021
Modified
03/22/2023

Description

A vulnerability was found in Linux Kernel, where a refcount leak in llcp_sock_connect() causing use-after-free which might lead to privilege escalations.

Solution(s)

  • ubuntu-upgrade-linux-image-4-15-0-1072-oracle
  • ubuntu-upgrade-linux-image-4-15-0-1086-raspi2
  • 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-4-4-0-1102-aws
  • ubuntu-upgrade-linux-image-4-4-0-1103-kvm
  • ubuntu-upgrade-linux-image-4-4-0-1138-aws
  • ubuntu-upgrade-linux-image-4-4-0-222-generic
  • ubuntu-upgrade-linux-image-4-4-0-222-lowlatency
  • ubuntu-upgrade-linux-image-5-10-0-1026-oem
  • ubuntu-upgrade-linux-image-5-11-0-1006-azure
  • ubuntu-upgrade-linux-image-5-11-0-1007-oracle
  • ubuntu-upgrade-linux-image-5-11-0-1008-aws
  • ubuntu-upgrade-linux-image-5-11-0-1008-gcp
  • ubuntu-upgrade-linux-image-5-11-0-1008-kvm
  • ubuntu-upgrade-linux-image-5-11-0-1009-raspi
  • ubuntu-upgrade-linux-image-5-11-0-1009-raspi-nolpae
  • ubuntu-upgrade-linux-image-5-11-0-18-generic
  • ubuntu-upgrade-linux-image-5-11-0-18-generic-64k
  • ubuntu-upgrade-linux-image-5-11-0-18-generic-lpae
  • ubuntu-upgrade-linux-image-5-11-0-18-lowlatency
  • ubuntu-upgrade-linux-image-5-4-0-1016-gkeop
  • ubuntu-upgrade-linux-image-5-4-0-1036-raspi
  • ubuntu-upgrade-linux-image-5-4-0-1040-kvm
  • ubuntu-upgrade-linux-image-5-4-0-1044-gcp
  • ubuntu-upgrade-linux-image-5-4-0-1044-gke
  • ubuntu-upgrade-linux-image-5-4-0-1046-oracle
  • ubuntu-upgrade-linux-image-5-4-0-1048-azure
  • ubuntu-upgrade-linux-image-5-4-0-1049-aws
  • ubuntu-upgrade-linux-image-5-4-0-74-generic
  • ubuntu-upgrade-linux-image-5-4-0-74-generic-lpae
  • ubuntu-upgrade-linux-image-5-4-0-74-lowlatency
  • ubuntu-upgrade-linux-image-5-8-0-1029-raspi
  • ubuntu-upgrade-linux-image-5-8-0-1029-raspi-nolpae
  • ubuntu-upgrade-linux-image-5-8-0-1030-kvm
  • ubuntu-upgrade-linux-image-5-8-0-1033-oracle
  • ubuntu-upgrade-linux-image-5-8-0-1035-gcp
  • ubuntu-upgrade-linux-image-5-8-0-1036-azure
  • ubuntu-upgrade-linux-image-5-8-0-1038-aws
  • ubuntu-upgrade-linux-image-5-8-0-59-generic
  • ubuntu-upgrade-linux-image-5-8-0-59-generic-64k
  • ubuntu-upgrade-linux-image-5-8-0-59-generic-lpae
  • ubuntu-upgrade-linux-image-5-8-0-59-lowlatency
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-aws-hwe
  • 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-64k
  • ubuntu-upgrade-linux-image-generic-64k-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-lts-xenial
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-gke-5-4
  • ubuntu-upgrade-linux-image-gkeop
  • ubuntu-upgrade-linux-image-gkeop-5-4
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-hwe-16-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-18-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-20-04
  • ubuntu-upgrade-linux-image-lowlatency-lts-xenial
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-oem-20-04b
  • ubuntu-upgrade-linux-image-oem-osp1
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-oracle-lts-18-04
  • ubuntu-upgrade-linux-image-raspi
  • ubuntu-upgrade-linux-image-raspi-hwe-18-04
  • ubuntu-upgrade-linux-image-raspi-nolpae
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-snapdragon
  • ubuntu-upgrade-linux-image-snapdragon-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-16-04
  • ubuntu-upgrade-linux-image-virtual-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual-hwe-20-04
  • ubuntu-upgrade-linux-image-virtual-lts-xenial

References

  • https://attackerkb.com/topics/cve-2020-25671
  • CVE - 2020-25671
  • CVE-2020-25671
  • USN-4465-1
  • USN-4483-1
  • USN-4485-1
  • USN-4945-1
  • USN-4945-2
  • USN-4946-1
  • USN-4947-1
  • USN-4948-1
  • USN-4949-1
  • USN-4977-1
  • USN-4979-1
  • USN-4982-1
  • USN-4984-1
  • USN-4989-1
  • USN-4989-2
  • USN-4997-1
  • USN-4997-2
  • USN-4999-1
  • USN-5000-1
  • USN-5000-2
  • USN-5001-1
  • USN-5015-1
  • USN-5016-1
  • USN-5017-1
  • USN-5018-1
  • USN-5044-1
  • USN-5045-1
  • USN-5046-1
  • USN-5050-1
  • USN-5070-1
  • USN-5071-1
  • USN-5071-2
  • USN-5071-3
  • USN-5073-1
  • USN-5073-2
  • USN-5073-3
  • USN-5091-1
  • USN-5091-2
  • USN-5092-1
  • USN-5092-2
  • USN-5094-1
  • USN-5094-2
  • USN-5096-1
  • USN-5106-1
  • USN-5113-1
  • USN-5114-1
  • USN-5115-1
  • USN-5116-1
  • USN-5116-2
  • USN-5120-1
  • USN-5136-1
  • USN-5137-1
  • USN-5137-2
  • USN-5139-1
  • USN-5165-1
  • USN-5208-1
  • USN-5209-1
  • USN-5210-1
  • USN-5218-1
  • USN-5278-1
  • USN-5299-1
  • USN-5302-1
  • USN-5337-1
  • USN-5338-1
  • USN-5339-1
  • USN-5343-1
  • USN-5362-1
  • USN-5368-1
  • USN-5377-1
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