PT-2016-7429 · Linux+5 · Linux Kernel+5

Published 2016-05-10 · Updated 2018-01-05 · CVE-2016-7914

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

AV:N/AC:M/Au:N/C:C/I:N/A:N

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.5.3

Description The issue allows local users to obtain sensitive information from kernel memory or cause a denial of service. This is due to the assoc array insert into terminal node function in lib/assoc array.c not checking whether a slot is a leaf, leading to an invalid pointer dereference and out-of-bounds read. The keyutils test suite demonstrates this issue.

Recommendations For Linux kernel versions prior to 4.5.3, update to version 4.5.3 or later to resolve the issue.

Fix

DoS

Out of bounds Read

NULL Pointer Dereference

Weakness Enumeration

CWE-125

CWE-476

Related Identifiers

ALT-PU-2016-1470

ALT-PU-2017-1330

CESA-2016_2574

CVE-2016-7914

OPENSUSE-SU-2016_3061-1

RHSA-2016:2574

RHSA-2016_2574

SUSE-SU-2017:0407-1

SUSE-SU-2017:0464-1

SUSE-SU-2017:0471-1

USN-3406-1

USN-3406-2

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

Ubuntu

References · 198

• https://github.com/torvalds/linux/commit/8d4a2ec1e0b41b0cf9a0c5cd4511da7f8e4f3de2 · Patch
• https://ubuntu.com/security/CVE-2017-7495 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-7914 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-7914 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3406-1 · Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2016-2574.html · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:0407-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-7914 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2016-7914 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-7914 · Security Note
• https://ubuntu.com/security/CVE-2017-7616 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:0464-1 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8d4a2ec1e0b41b0cf9a0c5cd4511da7f8e4f3de2 · Patch
• https://ubuntu.com/security/notices/USN-3406-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7273 · Vendor Advisory