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Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-3381-1)

high Nessus Plugin ID 102261

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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-3381-1 advisory.

 Peter Pi discovered that the colormap handling for frame buffer devices in the Linux kernel contained an integer overflow. A local attacker could use this to disclose sensitive information (kernel memory).
 (CVE-2016-8405)

 It was discovered that the Linux kernel did not properly restrict RLIMIT_STACK size. A local attacker could use this in conjunction with another vulnerability to possibly execute arbitrary code.
 (CVE-2017-1000365)

 It was discovered that SELinux in the Linux kernel did not properly handle empty writes to /proc/pid/attr.
 A local attacker could use this to cause a denial of service (system crash). (CVE-2017-2618)

 discovered that the RxRPC Kerberos 5 ticket handling code in the Linux kernel did not properly verify metadata. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-7482)

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-3381-1

Plugin Details

Severity: High

ID: 102261

File Name: ubuntu_USN-3381-1.nasl

Version: 1.12

Type: local

Agent: unix

Published: 8/8/2017

Updated: 8/27/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2017-7482

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-126-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-126-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-126-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-126-powerpc-smp, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-126-powerpc64-emb, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-126-powerpc-e500, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-126-powerpc-e500mc, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13.0-126-powerpc64-smp

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/7/2017

Vulnerability Publication Date: 1/12/2017

Reference Information

CVE: CVE-2016-8405, CVE-2017-1000365, CVE-2017-2618, CVE-2017-7482

USN: 3381-1