PT-2017-13023 · Linux+2 · Linux Kernel+2

Published 2017-08-25 · Updated 2026-03-13 · CVE-2017-13694

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.12.10 Linux kernel versions prior to 4.9 (for KASLR protection mechanism bypass)

Description The issue is related to the acpi ps complete final op() function in the Linux kernel, which does not properly flush node and node ext caches. This can cause a kernel stack dump, allowing local users to obtain sensitive information from kernel memory. Additionally, it can bypass the KASLR protection mechanism via a crafted ACPI table.

Recommendations For Linux kernel versions prior to 4.12.10, update to version 4.12.10 or later to resolve the issue. For Linux kernel versions prior to 4.9, update to version 4.9 or later to prevent KASLR protection mechanism bypass. As a temporary workaround, consider restricting access to crafted ACPI tables until a patch is available.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

ALT-PU-2017-2131

ALT-PU-2018-1543

ALT-PU-2018-1991

ALT-PU-2019-1054

CVE-2017-13694

ECHO-34E9-223D-CB1C

MGASA-2018-0192

Affected Products

Alt Linux

Debian

Linux Kernel

References · 18

• https://github.com/acpica/acpica/pull/278/commits/4a0243ecb4c94e2d73510d096c5ea4d0711fc6c0 · Patch
• https://security-tracker.debian.org/tracker/CVE-2017-13694 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-13694 · Security Note
• https://patchwork.kernel.org/patch/9806085 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-13694 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-13694 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-13694 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-13694 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/2GWIW33ZLQWFLVRBTPEOEXQZSADQTHSY · Vendor Advisory
• https://advisories.mageia.org/MGASA-2018-0192.html · Security Note
• https://osv.dev/vulnerability/MGASA-2018-0192 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-12-CVE-2017-13694 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-13694 · Vendor Advisory
• https://github.com/acpica/acpica/pull/278 · Note
• https://github.com/acpica/acpica/pull/278/commits/8829e70e1360c81e7a5a901b5d4f48330e021ea5 · Note