Allocation of Resources Without Limits or Throttling Affecting kernel package, versions <0:4.14.214-160.339.amzn2
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Test your applications- Snyk ID SNYK-AMZN2-KERNEL-1693223
- published 27 Sep 2021
- disclosed 15 Dec 2020
Introduced: 15 Dec 2020
CVE-2020-29568 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 kernel to version 0:4.14.214-160.339.amzn2 or higher.
This issue was patched in ALAS2-2021-1588.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
An issue was discovered in Xen through 4.14.x. Some OSes (such as Linux, FreeBSD, and NetBSD) are processing watch events using a single thread. If the events are received faster than the thread is able to handle, they will get queued. As the queue is unbounded, a guest may be able to trigger an OOM in the backend. All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29568
- https://www.debian.org/security/2021/dsa-4843
- https://security.gentoo.org/glsa/202107-30
- https://xenbits.xenproject.org/xsa/advisory-349.html
- https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html