Ubuntu.comUB:CVE-2017-13694CVE-2017-13694
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_ps_complete_final_op() function in drivers/acpi/acpica/psobject.c
in the Linux kernel through 4.12.9 does not flush the node and node_ext
caches 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.
Notes
| Author | Note |
|---|---|
| tyhicks | As of 17.04, KASLR is not yet enabled by default in Ubuntu See the patchwork.k.o reference for a possible fix. As of 2017-08-25, it has not yet been merged upstream. |
| sbeattie | drivers/acpi/acpica/psobject.c::acpi_ps_complete_final_op() |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 23.10 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-gke | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-azure | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-azure | < any | UNKNOWN |
| ubuntu | 23.10 | noarch | linux-azure | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-gcp | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-gcp | < any | UNKNOWN |
| ubuntu | 23.10 | noarch | linux-gcp | < any | UNKNOWN |
References
github.com/acpica/acpica/pull/278/commits/4a0243ecb4c94e2d73510d096c5ea4d0711fc6c0
github.com/acpica/acpica/pull/278/commits/8829e70e1360c81e7a5a901b5d4f48330e021ea5
launchpad.net/bugs/cve/CVE-2017-13694
nvd.nist.gov/vuln/detail/CVE-2017-13694
patchwork.kernel.org/patch/9806085/
security-tracker.debian.org/tracker/CVE-2017-13694
www.cve.org/CVERecord?id=CVE-2017-13694
Related
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%