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

high Nessus Plugin ID 87169

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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.

 It was discovered that the SCTP protocol implementation in the Linux kernel performed an incorrect sequence of protocol-initialization steps. A local attacker could use this to cause a denial of service (system crash). (CVE-2015-5283)

 Dmitry Vyukov discovered that the Linux kernel's keyring handler attempted to garbage collect incompletely instantiated keys. A local unprivileged attacker could use this to cause a denial of service (system crash). (CVE-2015-7872)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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: High

ID: 87169

File Name: ubuntu_USN-2823-1.nasl

Version: 2.13

Type: local

Agent: unix

Published: 12/2/2015

Updated: 8/28/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

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: High

Base Score: 7.8

Temporal Score: 7

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:P/RL:O/RC:C

CVSS Score Source: CVE-2015-7872

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, 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-generic-lpae, 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-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-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-71-powerpc64-emb

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