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CVE-2016-10229: Linux Kernel: Remote code execution

CVE-2016-10229 is rated critical with a CVSS v3.1 base score of 9.8 and affects Linux Kernel, along with 1 other product in NVD’s configuration data. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

udp.c in the Linux kernel before 4.5 allows remote attackers to execute arbitrary code via UDP traffic that triggers an unsafe second checksum calculation during execution of a recv system call with the MSG_PEEK flag.

Severity breakdown

CVSS v3.1 9.8: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
Attack complexity: Low. No special conditions; the attack can be repeated reliably.
Privileges required: None. No account or prior access is needed.
User interaction: None. No action from any user is needed.
Scope: Unchanged. Impact stays within the vulnerable component.
Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
Availability impact: High. Total loss of availability; the component can be shut down.

Underlying weakness

CWE-358: Improperly Implemented Security Check for Standard

The product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique.

Affected products

Linux Kernel: from 3.2 before 3.2.76; from 3.3 before 3.4.113; from 3.5 before 3.10.103; from 3.11 before 3.12.53; from 3.13 before 3.14.77; from 3.15 before 3.16.35; from 3.17 before 3.18.45; from 3.19 before 4.1.40; from 4.2 before 4.4.21
Google Android: up to and including 7.1.1