Detections
Analytics
RHEL 6 : kernel-rt (RHSA-2012:0061)
high Nessus Plugin ID 76636
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Synopsis
The remote Red Hat host is missing a security update for kernel-rt.Description
The remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2012:0061 advisory.The kernel-rt packages contain the Linux kernel, the core of any Linux operating system.
This update fixes the following security issue:
* It was found that permissions were not checked properly in the Linux kernel when handling the /proc/[pid]/mem writing functionality. A local, unprivileged user could use this flaw to escalate their privileges. Refer to Red Hat Knowledgebase article DOC-69129, linked to in the References, for further information. (CVE-2012-0056, Important)
Red Hat would like to thank Jri Aedla for reporting this issue.
Users should upgrade to these updated packages, which correct this issue.
The system must be rebooted for this update to take effect.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the RHEL kernel-rt package based on the guidance in RHSA-2012:0061.See Also
https://access.redhat.com/errata/RHSA-2012:0061
https://access.redhat.com/kb/docs/DOC-69129
https://access.redhat.com/security/updates/classification/#important
Plugin Details
Severity: High
ID: 76636
File Name: redhat-RHSA-2012-0061.nasl
Version: 1.19
Type: Local
Agent: unix
Family: Red Hat Local Security Checks
Published: 7/22/2014
Updated: 4/15/2025
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 9.5
Percentile: 99.86
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Medium
Base Score: 6.9
Temporal Score: 6
Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2012-0056
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7.5
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:H/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:kernel-rt-firmware, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-doc, p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace, cpe:/o:redhat:enterprise_linux:6
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 1/24/2012
Vulnerability Publication Date: 1/27/2012
Exploitable With
CANVAS (CANVAS)
Core Impact
Reference Information
CVE: CVE-2012-0056
BID: 51625