PT-2016-3140 · Linux+3 · Linux Kernel+3

Jann Horn · Published 2016-09-15 · Updated 2023-01-18 · CVE-2016-10044

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.7.7

Description The issue is related to the aio mount function in fs/aio.c, which does not properly restrict execute access. This allows a local attacker to bypass intended SELinux W^X policy restrictions and gain privileges via an io setup system call.

Recommendations For Linux kernel versions prior to 4.7.7, update to version 4.7.7 or later to resolve the issue. As a temporary workaround, consider restricting access to the io setup system call to minimize the risk of exploitation.

Fix

Weakness Enumeration

CWE-264

Related Identifiers

ALT-PU-2016-2081

ALT-PU-2016-2082

BDU:2017-01560

CVE-2016-10044

SUSE-SU-2017:1247-1

SUSE-SU-2017:1360-1

USN-3422-1

USN-3422-2

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 183

• https://github.com/torvalds/linux/commit/22f6b4d34fcf039c63a94e7670e0da24f8575a5a · Patch
• https://ubuntu.com/security/CVE-2016-10044 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:1247-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-10044 · Security Note
• https://ubuntu.com/security/notices/USN-3422-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-1000251 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-10044 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-10200 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2016-10044 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2017-3637.html · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:1360-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3422-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-6214 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-9604 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-9178 · Vendor Advisory