CVE-2021-3564

MEDIUM5.5

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

Published Jun 8, 2021

Modified 1 years ago

Details

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

WEBhttp://www.openwall.com/lists/oss-security/2021/05/25/1 WEBhttp://www.openwall.com/lists/oss-security/2021/06/01/2 WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=1964139 WEBhttps://lists.debian.org/debian-lts-announce/2021/06/msg00019.html WEBhttps://lists.debian.org/debian-lts-announce/2021/06/msg00020.html ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2021-3564 WEBhttps://www.openwall.com/lists/oss-security/2021/05/25/1

CVSS Analysis

CVSS v3.1

5.5

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

5.5/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

Other

CWE-415

Ecosystems

Timeline

PublishedJun 8, 2021

ModifiedAug 3, 2024