VulnerabilityModified
CVE-2021-3564
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.
MEDIUM 5.5EPSS 0.48%
Does this matter?
Lower severity and a low EPSS score (0.48%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.48% probability · 40th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-415
- Affected
- linux/linux kernel · fedoraproject/fedora · debian/debian linux
- Source
- secalert@redhat.com
References
- http://www.openwall.com/lists/oss-security/2021/05/25/1Exploit, Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/06/01/2Exploit, Mailing List
- https://bugzilla.redhat.com/show_bug.cgi?id=1964139Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlThird Party Advisory
- https://www.openwall.com/lists/oss-security/2021/05/25/1Exploit, Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/25/1Exploit, Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/06/01/2Exploit, Mailing List
- https://bugzilla.redhat.com/show_bug.cgi?id=1964139Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlThird Party Advisory
- https://www.openwall.com/lists/oss-security/2021/05/25/1Exploit, Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.