Excessive Platform Resource Consumption within a Loop Affecting kernel-tools package, versions <0:4.18.0-305.el8
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Test your applications- Snyk ID SNYK-RHEL8-KERNELTOOLS-3973361
- published 15 Mar 2023
- disclosed 9 Jan 2021
Introduced: 9 Jan 2021
CVE-2023-1390 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-tools to version 0:4.18.0-305.el8 or higher.
This issue was patched in RHSA-2021:1578.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-tools package and not the kernel-tools package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2023-1390
- https://access.redhat.com/errata/RHSA-2021:1578
- https://infosec.exchange/@_mattata/109427999461122360
- https://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5
- https://github.com/torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6
- https://infosec.exchange/%40_mattata/109427999461122360
- https://security.netapp.com/advisory/ntap-20230420-0001/