Skip to navigation Skip to main content

Utilities

  • Subscriptions
  • Downloads
  • Containers
  • Support Cases
Red Hat Customer Portal
  • Subscriptions
  • Downloads
  • Containers
  • Support Cases
  • Products & Services

    Products

    Support

    • Production Support
    • Development Support
    • Product Life Cycles

    Services

    • Consulting
    • Technical Account Management
    • Training & Certifications

    Documentation

    • Red Hat Enterprise Linux
    • Red Hat JBoss Enterprise Application Platform
    • Red Hat OpenStack Platform
    • Red Hat OpenShift Container Platform
    All Documentation

    Ecosystem Catalog

    • Red Hat Partner Ecosystem
    • Partner Resources
  • Tools

    Tools

    • Troubleshoot a product issue
    • Packages
    • Errata

    Customer Portal Labs

    • Configuration
    • Deployment
    • Security
    • Troubleshoot
    All labs

    Red Hat Insights

    Increase visibility into IT operations to detect and resolve technical issues before they impact your business.

    Learn More
    Go to Insights
  • Security

    Red Hat Product Security Center

    Engage with our Red Hat Product Security team, access security updates, and ensure your environments are not exposed to any known security vulnerabilities.

    Product Security Center

    Security Updates

    • Security Advisories
    • Red Hat CVE Database
    • Security Labs

    Keep your systems secure with Red Hat's specialized responses to security vulnerabilities.

    View Responses

    Resources

    • Security Blog
    • Security Measurement
    • Severity Ratings
    • Backporting Policies
    • Product Signing (GPG) Keys
  • Community

    Customer Portal Community

    • Discussions
    • Private Groups
    Community Activity

    Customer Events

    • Red Hat Convergence
    • Red Hat Summit

    Stories

    • Red Hat Subscription Value
    • You Asked. We Acted.
    • Open Source Communities
Or troubleshoot an issue.

Select Your Language

  • English
  • 한국어
  • 日本語
  • 中文 (中国)

Infrastructure and Management

  • Red Hat Enterprise Linux
  • Red Hat Virtualization
  • Red Hat Identity Management
  • Red Hat Directory Server
  • Red Hat Certificate System
  • Red Hat Satellite
  • Red Hat Subscription Management
  • Red Hat Update Infrastructure
  • Red Hat Insights
  • Red Hat Ansible Automation Platform

Cloud Computing

  • Red Hat OpenShift
  • Red Hat CloudForms
  • Red Hat OpenStack Platform
  • Red Hat OpenShift Container Platform
  • Red Hat OpenShift Data Science
  • Red Hat OpenShift Online
  • Red Hat OpenShift Dedicated
  • Red Hat Advanced Cluster Security for Kubernetes
  • Red Hat Advanced Cluster Management for Kubernetes
  • Red Hat Quay
  • OpenShift Dev Spaces
  • Red Hat OpenShift Service on AWS

Storage

  • Red Hat Gluster Storage
  • Red Hat Hyperconverged Infrastructure
  • Red Hat Ceph Storage
  • Red Hat OpenShift Data Foundation

Runtimes

  • Red Hat Runtimes
  • Red Hat JBoss Enterprise Application Platform
  • Red Hat Data Grid
  • Red Hat JBoss Web Server
  • Red Hat Single Sign On
  • Red Hat support for Spring Boot
  • Red Hat build of Node.js
  • Red Hat build of Thorntail
  • Red Hat build of Eclipse Vert.x
  • Red Hat build of OpenJDK
  • Red Hat build of Quarkus

Integration and Automation

  • Red Hat Integration
  • Red Hat Fuse
  • Red Hat AMQ
  • Red Hat 3scale API Management
  • Red Hat JBoss Data Virtualization
  • Red Hat Process Automation
  • Red Hat Process Automation Manager
  • Red Hat Decision Manager
All Products
Red Hat Product Errata RHSA-2013:0566 - Security Advisory
Issued:
2013-03-06
Updated:
2013-03-06

RHSA-2013:0566 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: kernel-rt security and bug fix update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

Updated kernel-rt packages that fix several security issues and multiple
bugs are now available for Red Hat Enterprise MRG 2.3.

The Red Hat Security Response Team has rated this update as having
important security impact. Common Vulnerability Scoring System (CVSS) base
scores, which give detailed severity ratings, are available for each
vulnerability from the CVE links in the References section.

Description

The kernel-rt packages contain the Linux kernel, the core of any Linux
operating system.

This update fixes the following security issues:

  • A buffer overflow flaw was found in the way UTF-8 characters were

converted to UTF-16 in the utf8s_to_utf16s() function of the Linux kernel's
FAT file system implementation. A local user able to mount a FAT file
system with the "utf8=1" option could use this flaw to crash the system or,
potentially, to escalate their privileges. (CVE-2013-1773, Important)

  • It was found that the RHSA-2012:0333 update did not correctly fix the

CVE-2011-4131 issue. A malicious Network File System version 4 (NFSv4)
server could return a crafted reply to a GETACL request, causing a denial
of service on the client. (CVE-2012-2375, Moderate)

  • A memory disclosure flaw was found in the way the load_script() function

in the binfmt_script binary format handler handled excessive recursions. A
local, unprivileged user could use this flaw to leak kernel stack memory to
user-space by executing specially-crafted scripts. (CVE-2012-4530, Low)

  • A flaw was found in the way file permission checks for the "/dev/kmsg"

file were performed in restricted root environments (for example, when
using a capability-based security model). A local user able to write to
this file could cause a denial of service. (CVE-2013-1772, Low)

The CVE-2012-2375 issue was discovered by Jian Li of Red Hat.

This update also fixes multiple bugs. Documentation for these changes will
be available shortly from the Technical Notes document linked to in the
References section.

Users should upgrade to these updated packages, which upgrade the kernel-rt
kernel to version kernel-rt-3.6.11-rt28, correct these issues, and fix the
bugs noted in the Red Hat Enterprise MRG 2 Technical Notes. The system must
be rebooted for this update to take effect.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

To install kernel packages manually, use "rpm -ivh [package]". Do not
use "rpm -Uvh" as that will remove the running kernel binaries from
your system. You may use "rpm -e" to remove old kernels after
determining that the new kernel functions properly on your system.

Affected Products

  • MRG Realtime 2 x86_64

Fixes

  • BZ - 773017 - kernel-rt-{debug,trace}-debuginfo conflicts against kernel-debuginfo
  • BZ - 822869 - CVE-2012-2375 kernel: incomplete fix for CVE-2011-4131
  • BZ - 866596 - RFE: rebase to 3.4 or greater kernel [mrg2.3]
  • BZ - 866600 - RFE: adding PTP kernel support as a Tech Preview [mrg2.3]
  • BZ - 868285 - CVE-2012-4530 kernel: stack disclosure in binfmt_script load_script()
  • BZ - 916075 - CVE-2013-1772 kernel: call_console_drivers() function log prefix stripping DoS
  • BZ - 916115 - CVE-2013-1773 kernel: VFAT slab-based buffer overflow

CVEs

  • CVE-2012-2375
  • CVE-2012-4530
  • CVE-2013-1773
  • CVE-2013-1772

References

  • https://access.redhat.com/security/updates/classification/#important
  • https://rhn.redhat.com/errata/RHSA-2012-0333.html
  • https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_MRG/2/html/Technical_Notes/RHSA-2013-0566.html
Note: More recent versions of these packages may be available. Click a package name for more details.

MRG Realtime 2

SRPM
kernel-rt-3.6.11-rt28.20.el6rt.src.rpm SHA-256: 6cd532af109c912f6ef0ac2c2696aa34112679116b5a3d44be661e0e4a43cb01
x86_64
kernel-rt-3.6.11-rt28.20.el6rt.x86_64.rpm SHA-256: 1c69506775e57587c8cae92fdf566af0f39df127a4812cc5b1aaff7fa64ecf48
kernel-rt-debug-3.6.11-rt28.20.el6rt.x86_64.rpm SHA-256: cbd523d58290a5f74a861fd13732a347d9d4289454fb2af853653a0036b17711
kernel-rt-debug-debuginfo-3.6.11-rt28.20.el6rt.x86_64.rpm SHA-256: 93562e4d987c6876547f1258fa79d8e027e546a828eac3c3a2d07172759a187f
kernel-rt-debug-devel-3.6.11-rt28.20.el6rt.x86_64.rpm SHA-256: 47a8815b957e6c109c8a1ce142491c6b6364bfbff53c19cd95e2c8890d0b2186
kernel-rt-debuginfo-3.6.11-rt28.20.el6rt.x86_64.rpm SHA-256: ed956a177622b962aaf9a477d591b55e18c46ec6497f2b4003fe3273cf078cf2
kernel-rt-debuginfo-common-x86_64-3.6.11-rt28.20.el6rt.x86_64.rpm SHA-256: 0ad38a2db5e71b2bd6b181cb1eab73a584710b91d0f5c2c1c689aaae3e529bdb
kernel-rt-devel-3.6.11-rt28.20.el6rt.x86_64.rpm SHA-256: 50b6825dbb45931865ae928407b8b1339709e7002b96d3a19736fd194b8f0225
kernel-rt-doc-3.6.11-rt28.20.el6rt.noarch.rpm SHA-256: 90ffac48ed9b21fdb283f3a09324d3defce4e04d01c9dc264d258df0f462be07
kernel-rt-firmware-3.6.11-rt28.20.el6rt.noarch.rpm SHA-256: f13ab3f8bbd946d0964bb3cead8cce34bec7b702dc188b18871855babd386413
kernel-rt-trace-3.6.11-rt28.20.el6rt.x86_64.rpm SHA-256: fa0ef07e16ad3c2e0e385840c6c15d6be9cd1ea137e5093c80ac0cbcc4c567a5
kernel-rt-trace-debuginfo-3.6.11-rt28.20.el6rt.x86_64.rpm SHA-256: eeff614bf1b44a41910481fbb2834ef6acee2ad815564e92d025980ce3a5f40f
kernel-rt-trace-devel-3.6.11-rt28.20.el6rt.x86_64.rpm SHA-256: 0522dfa8b9500c8e8cf392fb3a603bc5de650f815732bfe432aeff58984c650b
kernel-rt-vanilla-3.6.11-rt28.20.el6rt.x86_64.rpm SHA-256: 283cfeb837f7d9bbc3ec173af98eba2bff15c0a36896cf2dcc64da1f51573b76
kernel-rt-vanilla-debuginfo-3.6.11-rt28.20.el6rt.x86_64.rpm SHA-256: a9e96f9e40d3bb9aab7a8f81d10eeedfd1ae49b3e06fa819e695cc13cac0e62e
kernel-rt-vanilla-devel-3.6.11-rt28.20.el6rt.x86_64.rpm SHA-256: 8019090273c8a20868975369a88fd12a092d5a0064cd3ce611362d0c1a5b7343
mrg-rt-release-3.6.11-rt28.20.el6rt.noarch.rpm SHA-256: 04344d12c450ef2e4ac72869bbad4910c911134a90bdf348c792392cdea9bda2

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

Red Hat

Quick Links

  • Downloads
  • Subscriptions
  • Support Cases
  • Customer Service
  • Product Documentation

Help

  • Contact Us
  • Customer Portal FAQ
  • Log-in Assistance

Site Info

  • Trust Red Hat
  • Browser Support Policy
  • Accessibility
  • Awards and Recognition
  • Colophon

Related Sites

  • redhat.com
  • developers.redhat.com
  • connect.redhat.com
  • cloud.redhat.com

About

  • Red Hat Subscription Value
  • About Red Hat
  • Red Hat Jobs
Copyright © 2023 Red Hat, Inc.
  • Privacy Statement
  • Customer Portal Terms of Use
  • All Policies and Guidelines
Red Hat Summit
Twitter