PT-2016-7542 · Linux+3 · Linux Kernel+3

Daxing Guo · Published 2016-09-26 · Updated 2017-03-22 · CVE-2016-8658

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.7.5

Description The issue is related to a stack-based buffer overflow in the brcmf cfg80211 start ap function. This function is located in the cfg80211.c file within the Linux kernel. The overflow can occur when a local user sends a command to a Netlink socket with a long SSID Information Element. This can cause a denial of service, resulting in a system crash, or potentially have other unspecified impacts.

Recommendations For Linux kernel versions prior to 4.7.5, update to version 4.7.5 or later to resolve the issue. As a temporary workaround, consider restricting access to the Netlink socket to minimize the risk of exploitation.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2016-2022

ALT-PU-2017-1330

CVE-2016-8658

MGASA-2016-0372

OPENSUSE-SU-2016_2583-1

OPENSUSE-SU-2016_2625-1

OPENSUSE-SU-2016_3021-1

SUSE-SU-2016:2912-1

SUSE-SU-2016:3304-1

SUSE-SU-2017:0471-1

USN-3145-1

USN-3145-2

USN-3146-1

USN-3146-2

USN-3161-3

USN-3161-4

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 278

• https://github.com/torvalds/linux/commit/ded89912156b1a47d940a0c954c43afbabd0c42c · Patch
• https://osv.dev/vulnerability/USN-3161-4 · Vendor Advisory
• http://ubuntu.com/usn/USN-3146-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-8658 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-8658 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-9644 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-8658 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3145-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2016-8658 · Vendor Advisory
• http://ubuntu.com/usn/USN-3145-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-7042 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-7425 · Vendor Advisory
• http://ubuntu.com/usn/USN-3146-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8964 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2016-0372 · Vendor Advisory