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:3.0/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%
The acpi_ns_evaluate() function in drivers/acpi/acpica/nseval.c in the
Linux kernel through 4.12.9 does not flush the operand cache and causes a
kernel stack dump, which allows local users to obtain sensitive information
from kernel memory and bypass the KASLR protection mechanism (in the kernel
through 4.9) via a crafted ACPI table.
Author | Note |
---|---|
tyhicks | As of 17.04, KASLR is not yet enabled by default in Ubuntu |
sbeattie | drivers/acpi/acpica/nseval.c::AcpiNsEvaluate() |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < 4.15.0-34.37 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < 4.4.0-130.156 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1021.21 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-aws | < 4.4.0-1024.25 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | < 4.4.0-1062.71 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-azure | < 4.15.0-1023.24 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-azure | < 4.15.0-1023.24~16.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-azure-edge | < 4.15.0-1023.24 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-azure-edge | < 4.15.0-1023.24~16.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-gcp | < 4.15.0-1019.20 | UNKNOWN |
github.com/acpica/acpica/pull/296/commits/37f2c716f2c6ab14c3ba557a539c3ee3224931b5
launchpad.net/bugs/cve/CVE-2017-13695
nvd.nist.gov/vuln/detail/CVE-2017-13695
patchwork.kernel.org/patch/9850567/
security-tracker.debian.org/tracker/CVE-2017-13695
ubuntu.com/security/notices/USN-3696-1
ubuntu.com/security/notices/USN-3696-2
ubuntu.com/security/notices/USN-3762-1
ubuntu.com/security/notices/USN-3762-2
www.cve.org/CVERecord?id=CVE-2017-13695
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:3.0/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%