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Ubuntu: (Multiple Advisories) (CVE-2022-3910): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2022-3910): Linux kernel vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
11/22/2022
Created
01/10/2023
Added
01/07/2023
Modified
11/08/2023

Description

Use After Free vulnerability in Linux Kernel allows Privilege Escalation. An improper Update of Reference Count in io_uring leads to Use-After-Free and Local Privilege Escalation. When io_msg_ring was invoked with a fixed file, it called io_fput_file() which improperly decreased its reference count (leading to Use-After-Free and Local Privilege Escalation). Fixed files are permanently registered to the ring, and should not be put separately. We recommend upgrading past commit https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679

Solution(s)

  • ubuntu-upgrade-linux-image-5-19-0-1011-raspi
  • ubuntu-upgrade-linux-image-5-19-0-1011-raspi-nolpae
  • ubuntu-upgrade-linux-image-5-19-0-1014-gcp
  • ubuntu-upgrade-linux-image-5-19-0-1014-ibm
  • ubuntu-upgrade-linux-image-5-19-0-1014-lowlatency
  • ubuntu-upgrade-linux-image-5-19-0-1014-lowlatency-64k
  • ubuntu-upgrade-linux-image-5-19-0-1014-oracle
  • ubuntu-upgrade-linux-image-5-19-0-1015-kvm
  • ubuntu-upgrade-linux-image-5-19-0-1016-aws
  • ubuntu-upgrade-linux-image-5-19-0-1016-azure
  • ubuntu-upgrade-linux-image-5-19-0-28-generic
  • ubuntu-upgrade-linux-image-5-19-0-28-generic-64k
  • ubuntu-upgrade-linux-image-5-19-0-28-generic-lpae
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-64k
  • ubuntu-upgrade-linux-image-generic-64k-hwe-22-04
  • ubuntu-upgrade-linux-image-generic-hwe-22-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-22-04
  • ubuntu-upgrade-linux-image-ibm
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-64k
  • ubuntu-upgrade-linux-image-lowlatency-64k-hwe-22-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-22-04
  • ubuntu-upgrade-linux-image-oem-22-04
  • 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-22-04

References

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