CVE-2021-3564: Double Free
First published: Mon May 24 2021(Updated: )
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.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <0:3.10.0-1160.59.1.rt56.1200.el7 | 0:3.10.0-1160.59.1.rt56.1200.el7 |
| redhat/kernel | <0:3.10.0-1160.59.1.el7 | 0:3.10.0-1160.59.1.el7 |
| redhat/kernel-rt | <0:4.18.0-348.rt7.130.el8 | 0:4.18.0-348.rt7.130.el8 |
| redhat/kernel | <0:4.18.0-348.el8 | 0:4.18.0-348.el8 |
| Linux Linux kernel | >=3.13 | |
| Fedoraproject Fedora | =34 | |
| Debian Debian Linux | =9.0 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.5-1 6.11.7-1 |
Remedy
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2021-3564 https://nvd.nist.gov/vuln/detail/CVE-2021-3564 https://www.openwall.com/lists/oss-security/2021/05/25/1
- https://bugzilla.redhat.com/show_bug.cgi?id=1964139
- https://access.redhat.com/errata/RHSA-2022:0622
- https://access.redhat.com/errata/RHSA-2022:0620
- https://access.redhat.com/errata/RHSA-2021:4140
- https://access.redhat.com/errata/RHSA-2021:4356
- 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://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
- https://launchpad.net/bugs/cve/CVE-2021-3564
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1964449
- https://security-tracker.debian.org/tracker/CVE-2021-3564
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3564
- https://nvd.nist.gov/vuln/detail/CVE-2021-3564
- https://ubuntu.com/security/CVE-2021-3564
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- collector/nvd-index
- collector/launchpad-cve
- source/Launchpad
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2021-3564
- agent/type
- agent/author
- agent/first-publish-date
- agent/weakness
- agent/severity
- agent/remedy
- agent/description
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/references
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- agent/tags
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- package-manager/redhat
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/3.13
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/34
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/9.0
- package-manager/debian