CVE-2017-13695

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-08-25 · updated 2026-06-17
Weakness: CWE-200

Description

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.

Affected products

Linux kernel: through 4.12.9

References

http://www.securityfocus.com/bid/100497
https://github.com/acpica/acpica/pull/296/commits/37f2c716f2c6ab14c3ba557a539c3ee3224931b5
https://patchwork.kernel.org/patch/9850567/
https://usn.ubuntu.com/3696-1/
https://usn.ubuntu.com/3696-2/
https://usn.ubuntu.com/3762-1/
https://usn.ubuntu.com/3762-2/
http://www.securityfocus.com/bid/100497
https://github.com/acpica/acpica/pull/296/commits/37f2c716f2c6ab14c3ba557a539c3ee3224931b5
https://patchwork.kernel.org/patch/9850567/
https://usn.ubuntu.com/3696-1/
https://usn.ubuntu.com/3696-2/

Get alerted when CVE-2017-13695 or the next vulnerability affects your stack