Ubuntu 14.04 LTS : linux vulnerabilities (USN-2544-1)

high Nessus Plugin ID 82071
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Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

Eric Windisch discovered flaw in how the Linux kernel's XFS file system replaces remote attributes. A local access with access to an XFS file system could exploit this flaw to escalate their privileges.
(CVE-2015-0274)

A flaw was discovered in the automatic loading of modules in the crypto subsystem of the Linux kernel. A local user could exploit this flaw to load installed kernel modules, increasing the attack surface and potentially using this to gain administrative privileges.
(CVE-2013-7421)

The Linux kernel's splice system call did not correctly validate its parameters. A local, unprivileged user could exploit this flaw to cause a denial of service (system crash). (CVE-2014-7822)

A flaw was discovered in the crypto subsystem when screening module names for automatic module loading if the name contained a valid crypto module name, eg. vfat(aes). A local user could exploit this flaw to load installed kernel modules, increasing the attack surface and potentially using this to gain administrative privileges.
(CVE-2014-9644).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected linux-image-3.13-generic, linux-image-3.13-generic-lpae and / or linux-image-3.13-lowlatency packages.

See Also

https://usn.ubuntu.com/2544-1/

Plugin Details

Severity: High

ID: 82071

File Name: ubuntu_USN-2544-1.nasl

Version: 1.15

Type: local

Agent: unix

Published: 3/25/2015

Updated: 1/19/2021

Dependencies: ssh_get_info.nasl, linux_alt_patch_detect.nasl

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

Temporal Vector: E:POC/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-3.13-lowlatency, cpe:/o:canonical:ubuntu_linux:14.04

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/24/2015

Vulnerability Publication Date: 3/2/2015

Reference Information

CVE: CVE-2013-7421, CVE-2014-7822, CVE-2014-9644, CVE-2015-0274

BID: 72320, 72322, 73156

USN: 2544-1