4.4 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
3.6 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:N/A:P
0.001 Low
EPSS
Percentile
18.1%
A flaw was found in the Linux kernel’s implementation of Userspace core
dumps. This flaw allows an attacker with a local account to crash a trivial
program and exfiltrate private kernel data.
Author | Note |
---|---|
sbeattie | original report claimed this was introduced in 4206d3aa1978e44f58bfa4e1c9d8d35cbf19c187, but further investigation by Jann Horn makes the case that 91c3dba7dbc1 is where the real problem is introduced. |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < 4.15.0-115.116 | UNKNOWN |
ubuntu | 20.04 | noarch | linux | < 5.4.0-40.44 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < 4.4.0-186.216 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1080.84 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1018.18 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-aws | < 4.4.0-1075.79) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | < 4.4.0-1111.123 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws-5.3 | < 5.3.0-1032.34~18.04.2 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws-hwe | < 4.15.0-1080.84~16.04.1 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure | < 5.4.0-1020.20 | UNKNOWN |
launchpad.net/bugs/cve/CVE-2020-10732
lore.kernel.org/lkml/CAG48ez1u9=Uqcx2dH=7xea1R+WpnL239DSoVHLwV09=FxZUevQ@mail.gmail.com/#t
nvd.nist.gov/vuln/detail/CVE-2020-10732
security-tracker.debian.org/tracker/CVE-2020-10732
twitter.com/grsecurity/status/1252558055629299712
ubuntu.com/security/notices/USN-4411-1
ubuntu.com/security/notices/USN-4427-1
ubuntu.com/security/notices/USN-4439-1
ubuntu.com/security/notices/USN-4440-1
ubuntu.com/security/notices/USN-4485-1
www.cve.org/CVERecord?id=CVE-2020-10732
www.openwall.com/lists/oss-security/2020/05/06/1
4.4 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
3.6 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:N/A:P
0.001 Low
EPSS
Percentile
18.1%