vulnerability

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

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
2023-03-16
Added
2023-05-01
Modified
2025-01-28

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-awsubuntu-upgrade-linux-image-4-4-0-1119-kvmubuntu-upgrade-linux-image-4-4-0-1156-awsubuntu-upgrade-linux-image-4-4-0-240-genericubuntu-upgrade-linux-image-4-4-0-240-lowlatencyubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-lts-xenialubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-lts-xenialubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-lts-xenial
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