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Sicherheit: Mehrere Probleme im Kernel
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme im Kernel
ID: SUSE-SA:2010:023
Distribution: SUSE
Plattformen: SUSE SLE SDK 10 SP2, SUSE Linux Enterprise Desktop 10 SP2, SUSE Linux Enterprise Server 10 SP2
Datum: Do, 6. Mai 2010, 22:58
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4020
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4537
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0410
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-1083
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-1086
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-1088
Applikationen: Linux

Originalnachricht


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

______________________________________________________________________________

SUSE Security Announcement

Package: kernel
Announcement ID: SUSE-SA:2010:023
Date: Thu, 06 May 2010 13:00:00 +0000
Affected Products: SLE SDK 10 SP2
SUSE Linux Enterprise Desktop 10 SP2
SUSE Linux Enterprise Server 10 SP2
Vulnerability Type: remote denial of service
CVSS v2 Base Score: 7.8 (AV:N/AC:L/Au:N/C:N/I:N/A:C)
SUSE Default Package: yes
Cross-References: CVE-2009-4020, CVE-2009-4537, CVE-2010-0410
CVE-2010-1083, CVE-2010-1086, CVE-2010-1088

Content of This Advisory:
1) Security Vulnerability Resolved:
Linux kernel security update
Problem Description
2) Solution or Work-Around
3) Special Instructions and Notes
4) Package Location and Checksums
5) Pending Vulnerabilities, Solutions, and Work-Arounds:
See SUSE Security Summary Report.
6) Authenticity Verification and Additional Information

______________________________________________________________________________

1) Problem Description and Brief Discussion

This update fixes several security issues and various bugs in the
SUSE Linux Enterprise 10 SP 2 kernel. The bugs fixed include a serious
data corruption regression in NFSv4 introduced by the previous update.

Following security issues were fixed:
CVE-2009-4537: drivers/net/r8169.c in the r8169 driver in the Linux
kernel does not properly check the size of an Ethernet frame that
exceeds the MTU, which allows remote attackers to (1) cause a denial
of service (temporary network outage) via a packet with a crafted
size, in conjunction with certain packets containing A characters
and certain packets containing E characters; or (2) cause a denial of
service (system crash) via a packet with a crafted size, in conjunction
with certain packets containing '0' characters, related to the value
of the status register and erroneous behavior associated with the
RxMaxSize register.

CVE-2010-1086: The ULE decapsulation functionality in
drivers/media/dvb/dvb-core/dvb_net.c in dvb-core in the Linux kernel
earlier allows attackers to cause a denial of service (infinite loop)
via a crafted MPG2-TS frame, related to an invalid Payload Pointer
ULE.

CVE-2010-1088: fs/namei.c in Linux kernel does not always follow NFS
automount "symlinks," which allows attackers to have an unknown
impact,
related to LOOKUP_FOLLOW.

CVE-2009-4020: Stack-based buffer overflow in the hfs subsystem in the
Linux kernel allows remote attackers to have an unspecified impact
via a crafted Hierarchical File System (HFS) filesystem, related to
the hfs_readdir function in fs/hfs/dir.c.

CVE-2010-1083: The processcompl_compat function in
drivers/usb/core/devio.c in the Linux kernel does not clear the
transfer buffer before returning to user space when a USB command
fails, which might make it easier for physically proximate attackers
to obtain sensitive information (kernel memory).

CVE-2010-0410: drivers/connector/connector.c in the Linux kernel
allows local users to cause a denial of service (memory consumption and
system crash) by sending the kernel many NETLINK_CONNECTOR messages.

2) Solution or Work-Around

There is no known workaround, please install the update packages.

3) Special Instructions and Notes

Please reboot the machine after installing the update.

4) Package Location and Checksums

The preferred method for installing security updates is to use the YaST
Online Update (YOU) tool. YOU detects which updates are required and
automatically performs the necessary steps to verify and install them.
Alternatively, download the update packages for your distribution manually
and verify their integrity by the methods listed in Section 6 of this
announcement. Then install the packages using the command

rpm -Fhv <file.rpm>

to apply the update, replacing <file.rpm> with the filename of the
downloaded RPM package.

Our maintenance customers are notified individually. The packages are
offered for installation from the maintenance web:

SUSE Linux Enterprise Desktop 10 SP2 for AMD64 and Intel EM64T
?keywords=37bb490b2d9ca27c1027e09c0453381c

SUSE Linux Enterprise Server 10 SP2
?keywords=37bb490b2d9ca27c1027e09c0453381c
?keywords=080b3adeb2675c55f2a71c2e68f85e07
?keywords=ef2b9d5d6bc17682fa94fd4898564773
?keywords=e7da2abdeaf19e694fa26d810aaab118
?keywords=43e02dcbe650533bbc5c4aeb6300f0d0

SLE SDK 10 SP2
?keywords=37bb490b2d9ca27c1027e09c0453381c
?keywords=ef2b9d5d6bc17682fa94fd4898564773
?keywords=e7da2abdeaf19e694fa26d810aaab118
?keywords=43e02dcbe650533bbc5c4aeb6300f0d0

SUSE Linux Enterprise Desktop 10 SP2
?keywords=37bb490b2d9ca27c1027e09c0453381c
?keywords=43e02dcbe650533bbc5c4aeb6300f0d0

SUSE Linux Enterprise Desktop 10 SP2 for x86
?keywords=43e02dcbe650533bbc5c4aeb6300f0d0

______________________________________________________________________________

5) Pending Vulnerabilities, Solutions, and Work-Arounds:

See SUSE Security Summary Report.
______________________________________________________________________________

6) Authenticity Verification and Additional Information

- Announcement authenticity verification:

SUSE security announcements are published via mailing lists and on Web
sites. The authenticity and integrity of a SUSE security announcement is
guaranteed by a cryptographic signature in each announcement. All SUSE
security announcements are published with a valid signature.

To verify the signature of the announcement, save it as text into a file
and run the command

gpg --verify <file>

replacing <file> with the name of the file where you saved the
announcement. The output for a valid signature looks like:

gpg: Signature made <DATE> using RSA key ID 3D25D3D9
gpg: Good signature from "SuSE Security Team
<security@suse.de>"

where <DATE> is replaced by the date the document was signed.

If the security team's key is not contained in your key ring, you can
import it from the first installation CD. To import the key, use the
command

gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc

- Package authenticity verification:

SUSE update packages are available on many mirror FTP servers all over the
world. While this service is considered valuable and important to the free
and open source software community, the authenticity and the integrity of
a package needs to be verified to ensure that it has not been tampered
with.

The internal rpm package signatures provide an easy way to verify the
authenticity of an RPM package. Use the command

rpm -v --checksig <file.rpm>

to verify the signature of the package, replacing <file.rpm> with the
filename of the RPM package downloaded. The package is unmodified if it
contains a valid signature from build@suse.de with the key ID 9C800ACA.

This key is automatically imported into the RPM database (on
RPMv4-based distributions) and the gpg key ring of 'root' during
installation. You can also find it on the first installation CD and at
the end of this announcement.

- SUSE runs two security mailing lists to which any interested party may
subscribe:

opensuse-security@opensuse.org
- General Linux and SUSE security discussion.
All SUSE security announcements are sent to this list.
To subscribe, send an e-mail to
<opensuse-security+subscribe@opensuse.org>.

opensuse-security-announce@opensuse.org
- SUSE's announce-only mailing list.
Only SUSE's security announcements are sent to this list.
To subscribe, send an e-mail to
<opensuse-security-announce+subscribe@opensuse.org>.

=====================================================================
SUSE's security contact is <security@suse.com> or
<security@suse.de>.
The <security@suse.de> public key is listed below.
=====================================================================
______________________________________________________________________________

The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way. In particular, the
clear text signature should show proof of the authenticity of the text.

SUSE Linux Products GmbH provides no warranties of any kind whatsoever
with respect to the information contained in this security advisory.

Type Bits/KeyID Date User ID
pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <security@suse.de>
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build@suse.de>

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