Double Free Affecting kernel package, versions <0:4.14.238-182.421.amzn2
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Test your applications- Snyk ID SNYK-AMZN2-KERNEL-1702063
- published 27 Sep 2021
- disclosed 8 Jun 2021
Introduced: 8 Jun 2021
CVE-2021-3564 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 kernel to version 0:4.14.238-182.421.amzn2 or higher.
This issue was patched in ALAS2-2021-1685.
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 flaw double-free memory corruption in the Linux kernel HCI device initialization subsystem was found in the way user attach malicious HCI TTY Bluetooth device. A local user could use this flaw to crash the system. This flaw affects all the Linux kernel versions starting from 3.13.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3564
- https://access.redhat.com/errata/RHSA-2021:4140
- https://access.redhat.com/errata/RHSA-2021:4356
- https://access.redhat.com/errata/RHSA-2022:0620
- https://access.redhat.com/errata/RHSA-2022:0622
- https://access.redhat.com/security/cve/CVE-2021-3564
- http://www.openwall.com/lists/oss-security/2021/05/25/1
- http://www.openwall.com/lists/oss-security/2021/06/01/2
- https://bugzilla.redhat.com/show_bug.cgi?id=1964139
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
- https://www.openwall.com/lists/oss-security/2021/05/25/1