5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
0.0004 Low
EPSS
Percentile
8.3%
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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 21.04 | noarch | linux | < 5.11.0-31.33 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < 4.4.0-219.252) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
ubuntu | 18.04 | noarch | linux | < 4.15.0-154.161 | UNKNOWN |
ubuntu | 20.04 | noarch | linux | < 5.4.0-81.91 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws-5.8 | < 5.8.0-1042.44~20.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1110.117 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1055.58 | UNKNOWN |
ubuntu | 21.04 | noarch | linux-aws | < 5.11.0-1016.17 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-aws | < 4.4.0-1099.104) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | < 4.4.0-1135.149) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3564
launchpad.net/bugs/cve/CVE-2021-3564
lore.kernel.org/linux-bluetooth/[email protected]/
nvd.nist.gov/vuln/detail/CVE-2021-3564
security-tracker.debian.org/tracker/CVE-2021-3564
ubuntu.com/security/notices/USN-5015-1
ubuntu.com/security/notices/USN-5044-1
ubuntu.com/security/notices/USN-5045-1
ubuntu.com/security/notices/USN-5046-1
ubuntu.com/security/notices/USN-5050-1
ubuntu.com/security/notices/USN-5299-1
ubuntu.com/security/notices/USN-5343-1
www.openwall.com/lists/oss-security/2021/05/25/1
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
0.0004 Low
EPSS
Percentile
8.3%