CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:P/I:P/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
14.2%
An out-of-bounds (OOB) memory write flaw was found in list_devices in
drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel
before 5.12. A bound check failure allows an attacker with special user
(CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to
a system crash or a leak of internal kernel information. The highest threat
from this vulnerability is to system availability.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | <Â 4.15.0-144.148 | UNKNOWN |
ubuntu | 20.04 | noarch | linux | <Â 5.4.0-74.83 | UNKNOWN |
ubuntu | 20.10 | noarch | linux | <Â 5.8.0-55.62 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | <Â 4.4.0-223.256 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | <Â 4.15.0-1103.110 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | <Â 5.4.0-1049.51 | UNKNOWN |
ubuntu | 20.10 | noarch | linux-aws | <Â 5.8.0-1035.37 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-aws | <Â 4.4.0-1103.108 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | <Â 4.4.0-1139.153 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws-5.4 | <Â 5.4.0-1049.51~18.04.1 | UNKNOWN |
git.kernel.org/linus/4edbe1d7bcffcd6269f3b5eb63f710393ff2ec7a
launchpad.net/bugs/cve/CVE-2021-31916
nvd.nist.gov/vuln/detail/CVE-2021-31916
security-tracker.debian.org/tracker/CVE-2021-31916
ubuntu.com/security/notices/USN-4948-1
ubuntu.com/security/notices/USN-4979-1
ubuntu.com/security/notices/USN-4982-1
ubuntu.com/security/notices/USN-4984-1
ubuntu.com/security/notices/USN-5361-1
www.cve.org/CVERecord?id=CVE-2021-31916
www.openwall.com/lists/oss-security/2021/03/28/1
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:P/I:P/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
14.2%