Vulnerability Details : CVE-2017-13695
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.
Vulnerability category: Information leak
Products affected by CVE-2017-13695
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-13695
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-13695
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2017-13695
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-13695
-
https://github.com/acpica/acpica/pull/296/commits/37f2c716f2c6ab14c3ba557a539c3ee3224931b5
acpi: acpica: fix acpi operand cache leak in nseval.c by kkamagui · Pull Request #296 · acpica/acpica · GitHubIssue Tracking;Patch;Third Party Advisory
-
https://usn.ubuntu.com/3696-2/
USN-3696-2: Linux kernel (Xenial HWE) vulnerabilities | Ubuntu security notices
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http://www.securityfocus.com/bid/100497
Linux Kernel 'drivers/acpi/acpica/nseval.c' Local Information Disclosure VulnerabilityThird Party Advisory;VDB Entry
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https://patchwork.kernel.org/patch/9850567/
acpi: acpica: fix acpi operand cache leak in nseval.c - PatchworkPatch;Third Party Advisory
-
https://usn.ubuntu.com/3762-2/
USN-3762-2: Linux kernel (HWE) vulnerabilities | Ubuntu security notices
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https://usn.ubuntu.com/3762-1/
USN-3762-1: Linux kernel vulnerabilities | Ubuntu security notices
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https://usn.ubuntu.com/3696-1/
USN-3696-1: Linux kernel vulnerabilities | Ubuntu security notices
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