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Sicherheit: Ausführen beliebiger Kommandos in Linux
Aktuelle Meldungen Distributionen
Name: Ausführen beliebiger Kommandos in Linux
ID: RHSA-2017:0345-01
Distribution: Red Hat
Plattformen: Red Hat Enterprise Linux
Datum: Di, 28. Februar 2017, 22:36
Referenzen: https://access.redhat.com/security/cve/CVE-2017-6074

Originalnachricht

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=====================================================================
Red Hat Security Advisory

Synopsis: Important: kernel security update
Advisory ID: RHSA-2017:0345-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2017-0345.html
Issue date: 2017-02-28
CVE Names: CVE-2017-6074
=====================================================================

1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 6.4
Advanced Update Support.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Server AUS (v. 6.4) - noarch, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 6.4) - x86_64

3. Description:

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

Security Fix(es):

* A use-after-free flaw was found in the way the Linux kernel's Datagram
Congestion Control Protocol (DCCP) implementation freed SKB (socket buffer)
resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is
set on the socket. A local, unprivileged user could use this flaw to alter
the kernel memory, allowing them to escalate their privileges on the
system. (CVE-2017-6074, Important)

Red Hat would like to thank Andrey Konovalov (Google) for reporting this
issue.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

5. Bugs fixed (https://bugzilla.redhat.com/):

1423071 - CVE-2017-6074 kernel: use after free in dccp protocol

6. Package List:

Red Hat Enterprise Linux Server AUS (v. 6.4):

Source:
kernel-2.6.32-358.77.1.el6.src.rpm

noarch:
kernel-doc-2.6.32-358.77.1.el6.noarch.rpm
kernel-firmware-2.6.32-358.77.1.el6.noarch.rpm

x86_64:
kernel-2.6.32-358.77.1.el6.x86_64.rpm
kernel-debug-2.6.32-358.77.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-358.77.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-358.77.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-358.77.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-358.77.1.el6.x86_64.rpm
kernel-devel-2.6.32-358.77.1.el6.x86_64.rpm
kernel-headers-2.6.32-358.77.1.el6.x86_64.rpm
perf-2.6.32-358.77.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-358.77.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-358.77.1.el6.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 6.4):

Source:
kernel-2.6.32-358.77.1.el6.src.rpm

x86_64:
kernel-debug-debuginfo-2.6.32-358.77.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-358.77.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-358.77.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-358.77.1.el6.x86_64.rpm
python-perf-2.6.32-358.77.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-358.77.1.el6.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2017-6074
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2017 Red Hat, Inc.
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