RHEL 6 : dracut (RHSA-2013:1674)

low Nessus Plugin ID 71016

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

Updated dracut packages that fix one security issue, several bugs, and add two enhancements are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The dracut packages include an event-driven initramfs generator infrastructure based on the udev device manager. The virtual file system, initramfs, is loaded together with the kernel at boot time and initializes the system, so it can read and boot from the root partition.

It was discovered that dracut created initramfs images as world readable. A local user could possibly use this flaw to obtain sensitive information from these files, such as iSCSI authentication passwords, encrypted root file system crypttab passwords, or other information. (CVE-2012-4453)

This issue was discovered by Peter Jones of the Red Hat Installer Team.

These updated dracut packages include numerous bug fixes and two enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.5 Technical Notes, linked to in the References, for information on the most significant of these changes.

All dracut users are advised to upgrade to these updated packages, which contain backported patches to correct these issues and add these enhancements.

Solution

Update the affected packages.

Plugin Details

Severity: Low

ID: 71016

File Name: redhat-RHSA-2013-1674.nasl

Version: 1.15

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/21/2013

Updated: 1/14/2021

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:dracut-fips-aesni, p-cpe:/a:redhat:enterprise_linux:dracut-caps, p-cpe:/a:redhat:enterprise_linux:dracut-network, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:dracut, p-cpe:/a:redhat:enterprise_linux:dracut-generic, p-cpe:/a:redhat:enterprise_linux:dracut-kernel, p-cpe:/a:redhat:enterprise_linux:dracut-tools, p-cpe:/a:redhat:enterprise_linux:dracut-fips

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 11/21/2013

Vulnerability Publication Date: 10/9/2012

Reference Information

CVE: CVE-2012-4453

BID: 55713

RHSA: 2013:1674

Detections

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