Ubuntu 14.04 LTS / 16.04 LTS : Linux kernel vulnerability (USN-3256-1)

high Nessus Plugin ID 99197

Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 14.04 LTS / 16.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-3256-1 advisory.

- The packet_set_ring function in net/packet/af_packet.c in the Linux kernel through 4.10.6 does not properly validate certain block-size data, which allows local users to cause a denial of service (integer signedness error and out-of-bounds write), or gain privileges (if the CAP_NET_RAW capability is held), via crafted system calls. (CVE-2017-7308)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected kernel package.

See Also

https://ubuntu.com/security/notices/USN-3256-1

Plugin Details

Severity: High

ID: 99197

File Name: ubuntu_USN-3256-1.nasl

Version: 3.15

Type: local

Agent: unix

Published: 4/5/2017

Updated: 1/9/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2017-7308

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-116-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-116-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-116-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-116-powerpc-e500, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-116-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-116-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-116-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-116-powerpc64-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1010-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1013-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1052-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1055-snapdragon, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-72-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-72-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-72-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-72-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-72-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-72-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-72-powerpc64-smp, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/4/2017

Vulnerability Publication Date: 3/29/2017

Exploitable With

Core Impact

Metasploit (AF_PACKET packet_set_ring Privilege Escalation)

Reference Information

CVE: CVE-2017-7308

USN: 3256-1