PT-2016-5776 · Linux+2 · Linux Kernel+2

Andrey Konovalov · Published 2016-05-02 · Updated 2017-08-13 · CVE-2016-3951

Positive Technologies (AI Summary)

CVSS v2.0

4.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.5

Description A double free vulnerability in the Linux kernel allows physically proximate attackers to cause a denial of service, potentially leading to a system crash, by inserting a USB device with an invalid USB descriptor. The vulnerability is located in the drivers/net/usb/cdc ncm.c file.

Recommendations For Linux kernel versions prior to 4.5, update to version 4.5 or later to resolve the issue. As a temporary workaround, consider restricting access to USB devices to minimize the risk of exploitation.

Exploit

Fix

Related Identifiers

CVE-2016-3951

DLA-516-1

DSA-3607-1

OPENSUSE-SU-2016_1382-1

OPENSUSE-SU-2016_2144-1

SUSE-SU-2016:1690-1

SUSE-SU-2016:1696-1

SUSE-SU-2016:1764-1

USN-2965-1

USN-2965-2

USN-2965-3

USN-2965-4

USN-2989-1

USN-2998-1

USN-3000-1

USN-3001-1

USN-3002-1

USN-3003-1

USN-3004-1

USN-3021-1

USN-3021-2

Affected Products

Linux Kernel

Suse

Ubuntu

References · 312

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/netfilter_priv_esc_ipv4.rb · Exploit
• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/bpf_priv_esc.rb · Exploit
• 🔥 https://github.com/xairy/kernel-exploits/tree/master/CVE-2016-2384 · Exploit
• https://github.com/torvalds/linux/commit/4d06dd537f95683aba3651098ae288b7cbff8274 · Vendor Advisory
• https://github.com/torvalds/linux/commit/1666984c8625b3db19a9abc298931d35ab7bc64b · Vendor Advisory
• http://ubuntu.com/usn/USN-2989-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3000-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-3156 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:1764-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-3138 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2069 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-4581 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2187 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-3951 · Vendor Advisory
• https://osv.dev/vulnerability/USN-2965-2 · Vendor Advisory