CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
5.1%
A flaw was found in the Linux kernel. A use-after-free was found in the way
the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local
user could use this flaw to get read memory access out of bounds. The
highest threat from this vulnerability is to data confidentiality.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < 4.15.0-129.132 | UNKNOWN |
ubuntu | 20.04 | noarch | linux | < 5.4.0-59.65 | UNKNOWN |
ubuntu | 20.10 | noarch | linux | < 5.8.0-44.50 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < 4.4.0-198.230 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1091.96 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1034.35 | UNKNOWN |
ubuntu | 20.10 | noarch | linux-aws | < 5.8.0-1024.26 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-aws | < 4.4.0-1083.87 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | < 4.4.0-1119.133 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws-5.4 | < 5.4.0-1034.35~18.04.1 | UNKNOWN |
launchpad.net/bugs/cve/CVE-2020-25656
nvd.nist.gov/vuln/detail/CVE-2020-25656
security-tracker.debian.org/tracker/CVE-2020-25656
ubuntu.com/security/notices/USN-4679-1
ubuntu.com/security/notices/USN-4680-1
ubuntu.com/security/notices/USN-4681-1
ubuntu.com/security/notices/USN-4751-1
www.cve.org/CVERecord?id=CVE-2020-25656
www.openwall.com/lists/oss-security/2020/10/16/1
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
5.1%