Memory Leak Affecting kernel package, versions <0:4.14.252-195.481.amzn2
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Test your applications- Snyk ID SNYK-AMZN2-KERNEL-1911177
- published 5 Nov 2021
- disclosed 23 Aug 2022
Introduced: 5 Nov 2021
CVE-2021-3764 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 kernel to version 0:4.14.252-195.481.amzn2 or higher.
This issue was patched in ALAS2-2021-1719.
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.
A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. The highest threat from this vulnerability is to system availability.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3764
- https://access.redhat.com/security/cve/CVE-2021-3764
- https://bugzilla.redhat.com/show_bug.cgi?id=1997467
- https://github.com/torvalds/linux/commit/505d9dcb0f7ddf9d075e729523a33d38642ae680
- https://security-tracker.debian.org/tracker/CVE-2021-3764