Double Free Affecting kernel-rt package, versions <0:3.10.0-1160.59.1.rt56.1200.el7
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Test your applications- Snyk ID SNYK-CENTOS7-KERNELRT-2023078
- published 26 Jul 2021
- disclosed 25 May 2021
Introduced: 25 May 2021
CVE-2021-3564 Open this link in a new tabHow to fix?
Upgrade Centos:7 kernel-rt to version 0:3.10.0-1160.59.1.rt56.1200.el7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt package and not the kernel-rt package as distributed by Centos.
See How to fix? for Centos:7 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
- https://access.redhat.com/security/cve/CVE-2021-3564
- https://bugzilla.redhat.com/show_bug.cgi?id=1964139
- https://www.openwall.com/lists/oss-security/2021/05/25/1
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
- http://www.openwall.com/lists/oss-security/2021/05/25/1
- http://www.openwall.com/lists/oss-security/2021/06/01/2
- https://access.redhat.com/errata/RHSA-2022:0622