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Test Kennung:1.3.6.1.4.1.25623.1.0.870709
Kategorie:Red Hat Local Security Checks
Titel:RedHat Update for kernel RHSA-2011:0836-01
Zusammenfassung:The remote host is missing an update for the 'kernel'; package(s) announced via the referenced advisory.
Beschreibung:Summary:
The remote host is missing an update for the 'kernel'
package(s) announced via the referenced advisory.

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

This update fixes the following security issues:

* An integer underflow flaw, leading to a buffer overflow, was found in the
Linux kernel's Datagram Congestion Control Protocol (DCCP) implementation.
This could allow a remote attacker to cause a denial of service.
(CVE-2011-1770, Important)

* Missing sanity checks were found in setup_arg_pages() in the Linux
kernel. When making the size of the argument and environment area on the
stack very large, it could trigger a BUG_ON(), resulting in a local denial
of service. (CVE-2010-3858, Moderate)

* A missing validation check was found in the bcm_release() and
raw_release() functions in the Linux kernel's Controller Area Network (CAN)
implementation. This could allow a local, unprivileged user to cause a
denial of service. (CVE-2011-1598, CVE-2011-1748, Moderate)

* The fix for Red Hat Bugzilla bug 656461, as provided in RHSA-2011:0542,
introduced a regression in the cifs_close() function in the Linux kernel's
Common Internet File System (CIFS) implementation. A local, unprivileged
user with write access to a CIFS file system could use this flaw to cause a
denial of service. (CVE-2011-1771, Moderate)

Red Hat would like to thank Dan Rosenberg for reporting CVE-2011-1770, Brad
Spengler for reporting CVE-2010-3858, and Oliver Hartkopp for reporting
CVE-2011-1748.

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

Users should upgrade to these updated packages, which contain backported
patches to resolve these issues, and fix the bugs noted in the Technical
Notes. The system must be rebooted for this update to take effect.

Affected Software/OS:
kernel on Red Hat Enterprise Linux Desktop (v. 6),
Red Hat Enterprise Linux Server (v. 6),
Red Hat Enterprise Linux Workstation (v. 6)

Solution:
Please Install the Updated Packages.

CVSS Score:
7.8

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

Querverweis: Common Vulnerability Exposure (CVE) ID: CVE-2010-3858
BugTraq ID: 44301
http://www.securityfocus.com/bid/44301
Bugtraq: 20111013 VMSA-2011-0012 VMware ESXi and ESX updates to third party libraries and ESX Service Console (Google Search)
http://www.securityfocus.com/archive/1/520102/100/0/threaded
Debian Security Information: DSA-2126 (Google Search)
http://www.debian.org/security/2010/dsa-2126
http://www.exploit-db.com/exploits/15619
http://www.mandriva.com/security/advisories?name=MDVSA-2010:257
http://grsecurity.net/~spender/64bit_dos.c
http://www.openwall.com/lists/oss-security/2010/10/21/1
http://www.openwall.com/lists/oss-security/2010/10/22/4
http://www.redhat.com/support/errata/RHSA-2010-0958.html
http://www.redhat.com/support/errata/RHSA-2011-0004.html
http://secunia.com/advisories/42758
http://secunia.com/advisories/42789
http://secunia.com/advisories/46397
http://www.ubuntu.com/usn/USN-1041-1
http://www.vupen.com/english/advisories/2011/0024
http://www.vupen.com/english/advisories/2011/0070
Common Vulnerability Exposure (CVE) ID: CVE-2011-1598
BugTraq ID: 47503
http://www.securityfocus.com/bid/47503
http://permalink.gmane.org/gmane.linux.network/192898
http://openwall.com/lists/oss-security/2011/04/20/2
http://openwall.com/lists/oss-security/2011/04/20/6
http://openwall.com/lists/oss-security/2011/04/20/7
http://openwall.com/lists/oss-security/2011/04/21/1
http://openwall.com/lists/oss-security/2011/04/21/2
http://openwall.com/lists/oss-security/2011/04/21/7
http://openwall.com/lists/oss-security/2011/04/22/2
http://openwall.com/lists/oss-security/2011/04/25/4
Common Vulnerability Exposure (CVE) ID: CVE-2011-1748
BugTraq ID: 47835
http://www.securityfocus.com/bid/47835
http://permalink.gmane.org/gmane.linux.network/192974
Common Vulnerability Exposure (CVE) ID: CVE-2011-1770
BugTraq ID: 47769
http://www.securityfocus.com/bid/47769
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061366.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061236.html
http://marc.info/?l=linux-kernel&m=130469305815140&w=2
http://marc.info/?l=linux-kernel&m=130468845209036&w=2
http://www.securitytracker.com/id?1025592
http://secunia.com/advisories/44932
http://securityreason.com/securityalert/8286
Common Vulnerability Exposure (CVE) ID: CVE-2011-1771
http://marc.info/?l=linux-cifs&m=130204730006155&w=2
http://marc.info/?l=linux-cifs&m=130204357001849&w=2
http://www.openwall.com/lists/oss-security/2011/05/09/2
http://securityreason.com/securityalert/8367
CopyrightCopyright (c) 2012 Greenbone Networks GmbH

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