5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:N/A:N
0.0004 Low
EPSS
Percentile
5.3%
A logic bug flaw was found in Linux kernel before 5.8-rc1 in the
implementation of SSBD. A bug in the logic handling allows an attacker with
a local account to disable SSBD protection during a context switch when
additional speculative execution mitigations are in place. This issue was
introduced when the per task/process conditional STIPB switching was added
on top of the existing SSBD switching. The highest threat from this
vulnerability is to confidentiality.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | <Β 4.15.0-115.116 | UNKNOWN |
ubuntu | 20.04 | noarch | linux | <Β 5.4.0-45.49 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | <Β 4.4.0-186.216 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | <Β 4.15.0-1080.84 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | <Β 5.4.0-1022.22 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-aws | <Β 4.4.0-1075.79) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | <Β 4.4.0-1111.123 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws-5.3 | <Β 5.3.0-1032.34~18.04.2 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws-5.4 | <Β 5.4.0-1022.22~18.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws-hwe | <Β 4.15.0-1080.84~16.04.1 | UNKNOWN |
launchpad.net/bugs/cve/CVE-2020-10766
nvd.nist.gov/vuln/detail/CVE-2020-10766
security-tracker.debian.org/tracker/CVE-2020-10766
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-4483-1
ubuntu.com/security/notices/USN-4485-1
www.cve.org/CVERecord?id=CVE-2020-10766
www.openwall.com/lists/oss-security/2020/06/10/1
www.theregister.com/2020/06/09/linux_kernel_bugs_spectre
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:N/A:N
0.0004 Low
EPSS
Percentile
5.3%