PT-2016-6658 · Linux+2 · Linux Kernel+2

Pengfei Wang · Published 2016-06-22 · Updated 2017-03-22 · CVE-2016-5728

Positive Technologies (AI Summary)

CVSS v3.1

6.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.6.1

Description A race condition exists in the vop ioctl function, allowing local users to obtain sensitive information from kernel memory or cause a denial of service, including memory corruption and system crash, by exploiting a "double fetch" vulnerability in the MIC VOP driver.

Recommendations For versions prior to 4.6.1, update to version 4.6.1 or later to resolve the issue. As a temporary workaround, consider restricting access to the vop ioctl function to minimize the risk of exploitation.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2016-1634

ALT-PU-2017-1330

CVE-2016-5728

DSA-3616-1

USN-3070-1

USN-3070-2

USN-3070-3

USN-3070-4

USN-3071-1

USN-3071-2

Affected Products

Alt Linux

Linux Kernel

Ubuntu

References · 38

• https://github.com/torvalds/linux/commit/9bf292bfca94694a721449e3fd752493856710f6 · Vendor Advisory
• http://debian.org/security/2016/dsa-3616 · Vendor Advisory
• http://ubuntu.com/usn/USN-3070-3 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-5828 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-5696 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3070-4 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-5728 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3070-2 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3070-3 · Vendor Advisory
• http://ubuntu.com/usn/USN-3071-2 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9bf292bfca94694a721449e3fd752493856710f6 · Vendor Advisory
• http://ubuntu.com/usn/USN-3071-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-5728 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3071-2 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3070-3 · Vendor Advisory