Information Exposure Affecting acpica-unix package, versions <20180209-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN14-ACPICAUNIX-11735483
- published10 Aug 2025
- disclosed25 Aug 2017
Introduced: 25 Aug 2017
CVE-2017-13695 (opens in a new tab)How to fix?
Upgrade Debian:14 acpica-unix to version 20180209-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream acpica-unix package and not the acpica-unix package as distributed by Debian.
See How to fix? for Debian:14 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2017-13695
- https://github.com/acpica/acpica/pull/296/commits/37f2c716f2c6ab14c3ba557a539c3ee3224931b5
- https://patchwork.kernel.org/patch/9850567/
- http://www.securityfocus.com/bid/100497
- https://usn.ubuntu.com/3696-1/
- https://usn.ubuntu.com/3696-2/
- https://usn.ubuntu.com/3762-1/
- https://usn.ubuntu.com/3762-2/