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Ubuntu: (Multiple Advisories) (CVE-2023-1872): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2023-1872): Linux kernel vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
04/12/2023
Created
05/05/2023
Added
05/01/2023
Modified
06/02/2023

Description

A use-after-free vulnerability in the Linux Kernel io_uring system can be exploited to achieve local privilege escalation. The io_file_get_fixed function lacks the presence of ctx->uring_lock which can lead to a Use-After-Free vulnerability due a race condition with fixed files getting unregistered. We recommend upgrading past commit da24142b1ef9fd5d36b76e36bab328a5b27523e8.

Solution(s)

  • ubuntu-upgrade-linux-image-5-15-0-1019-gkeop
  • ubuntu-upgrade-linux-image-5-15-0-1028-raspi
  • ubuntu-upgrade-linux-image-5-15-0-1028-raspi-nolpae
  • ubuntu-upgrade-linux-image-5-15-0-1029-ibm
  • ubuntu-upgrade-linux-image-5-15-0-1030-intel-iotg
  • ubuntu-upgrade-linux-image-5-15-0-1032-gke
  • ubuntu-upgrade-linux-image-5-15-0-1032-kvm
  • ubuntu-upgrade-linux-image-5-15-0-1033-gcp
  • ubuntu-upgrade-linux-image-5-15-0-1034-oracle
  • ubuntu-upgrade-linux-image-5-15-0-1035-aws
  • ubuntu-upgrade-linux-image-5-15-0-1037-azure
  • ubuntu-upgrade-linux-image-5-15-0-1037-azure-fde
  • ubuntu-upgrade-linux-image-5-15-0-71-generic
  • ubuntu-upgrade-linux-image-5-15-0-71-generic-64k
  • ubuntu-upgrade-linux-image-5-15-0-71-generic-lpae
  • ubuntu-upgrade-linux-image-5-15-0-71-lowlatency
  • ubuntu-upgrade-linux-image-5-15-0-71-lowlatency-64k
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-aws-lts-22-04
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-cvm
  • ubuntu-upgrade-linux-image-azure-fde
  • ubuntu-upgrade-linux-image-azure-lts-22-04
  • ubuntu-upgrade-linux-image-gcp
  • 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-20-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-gke-5-15
  • ubuntu-upgrade-linux-image-gkeop
  • ubuntu-upgrade-linux-image-gkeop-5-15
  • ubuntu-upgrade-linux-image-ibm
  • ubuntu-upgrade-linux-image-intel
  • ubuntu-upgrade-linux-image-intel-iotg
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-64k
  • ubuntu-upgrade-linux-image-lowlatency-64k-hwe-20-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-20-04
  • ubuntu-upgrade-linux-image-oem-20-04
  • ubuntu-upgrade-linux-image-oem-20-04b
  • ubuntu-upgrade-linux-image-oem-20-04c
  • ubuntu-upgrade-linux-image-oem-20-04d
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-raspi
  • ubuntu-upgrade-linux-image-raspi-nolpae
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-20-04

References

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