Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-2823-1)

medium Nessus Plugin ID 87169

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2823-1 advisory.

- The sctp_init function in net/sctp/protocol.c in the Linux kernel before 4.2.3 has an incorrect sequence of protocol-initialization steps, which allows local users to cause a denial of service (panic or memory corruption) by creating SCTP sockets before all of the steps have finished. (CVE-2015-5283)

- The key_gc_unused_keys function in security/keys/gc.c in the Linux kernel through 4.2.6 allows local users to cause a denial of service (OOPS) via crafted keyctl commands. (CVE-2015-7872)

Note that Nessus has not tested for these issues 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-2823-1

Plugin Details

Severity: Medium

ID: 87169

File Name: ubuntu_USN-2823-1.nasl

Version: 2.12

Type: local

Agent: unix

Published: 12/2/2015

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: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 3.7

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

CVSS Score Source: CVE-2015-5283

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

CVSS Score Source: CVE-2015-7872

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-71-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-71-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-71-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-71-powerpc-e500, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-71-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-71-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-71-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-71-powerpc64-smp, cpe:/o:canonical:ubuntu_linux:14.04:-: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: 12/1/2015

Vulnerability Publication Date: 10/19/2015

Reference Information

CVE: CVE-2015-5283, CVE-2015-7872

USN: 2823-1