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Ubuntu: USN-6045-1 (CVE-2023-1390): Linux kernel vulnerabilities

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Ubuntu: USN-6045-1 (CVE-2023-1390): Linux kernel vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
03/16/2023
Created
05/05/2023
Added
05/01/2023
Modified
10/23/2024

Description

A remote denial of service vulnerability was found in the Linux kernel’s TIPC kernel module. The while loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue. Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system to instantly spike to 100%, causing a denial of service condition.

Solution(s)

  • ubuntu-upgrade-linux-image-4-4-0-1118-aws
  • ubuntu-upgrade-linux-image-4-4-0-1119-kvm
  • ubuntu-upgrade-linux-image-4-4-0-1156-aws
  • ubuntu-upgrade-linux-image-4-4-0-240-generic
  • ubuntu-upgrade-linux-image-4-4-0-240-lowlatency
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-lts-xenial
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-lts-xenial
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-lts-xenial

References

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