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______________________________________________________________________________
SUSE Security Announcement
Package: kernel
Announcement ID: SUSE-SA:2009:055
Date: Thu, 12 Nov 2009 19:00:00 +0000
Affected Products: SLE SDK 10 SP3
SUSE Linux Enterprise Desktop 10 SP3
SUSE Linux Enterprise 10 SP3 DEBUGINFO
SUSE Linux Enterprise Server 10 SP3
Vulnerability Type: local privilege escalation
Severity (1-10): 7
SUSE Default Package: yes
Cross-References: CVE-2009-1192, CVE-2009-2909, CVE-2009-2910,
CVE-2009-3238, CVE-2009-3547
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:
Pending updates for the CVE-2009-3547 issue
6) Authenticity Verification and Additional Information
______________________________________________________________________________
1) Problem Description and Brief Discussion
This update fixes various bugs and some security issues in the SUSE
Linux Enterprise 10 SP 3 kernel.
Following security issues were fixed:
CVE-2009-3547: A race condition during pipe open could be used by
local attackers to elevate privileges.
CVE-2009-3238: The get_random_int function in drivers/char/random.c in
the Linux kernel produces insufficiently random numbers, which allows
attackers to predict the return value, and possibly defeat protection
mechanisms based on randomization, via vectors that leverage the
functions tendency to return the same value over and over again for
long stretches of time.
CVE-2009-1192: The (1) agp_generic_alloc_page and (2)
agp_generic_alloc_pages functions in drivers/char/agp/generic.c in
the agp subsystem in the Linux kernel do not zero out pages that may
later be available to a user-space process, which allows local users to obtain sensitive information by reading these pages.
CVE-2009-2909: Unsigned check in the ax25 socket handler could allow
local attackers to potentially crash the kernel or even execute code.
CVE-2009-2910: On x86_64 systems a information leak of high register
contents (upper 32bit) was fixed.
2) Solution or Work-Around
There is no known workaround, please install the update packages.
3) Special Instructions and Notes
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
to apply the update, replacing 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 SP3 for AMD64 and Intel EM64T
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=ddf0cfe0200a78301be8b1d7b78fb645
SUSE Linux Enterprise 10 SP3 DEBUGINFO for IBM zSeries 64bit
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=b7e0a3a4762fed8e2796b6c6a47318da
SUSE Linux Enterprise 10 SP3 DEBUGINFO for IBM POWER
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=2cf3d40457c9435953c26b8e74c24432
SUSE Linux Enterprise 10 SP3 DEBUGINFO for IPF
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=5fb2b55e46097825cba505848cb839cb
SUSE Linux Enterprise Server 10 SP3
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=ddf0cfe0200a78301be8b1d7b78fb645
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=b7e0a3a4762fed8e2796b6c6a47318da
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=2cf3d40457c9435953c26b8e74c24432
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=5fb2b55e46097825cba505848cb839cb
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=4d39ec6d8748e038ab04a0b27f7382a1
SLE SDK 10 SP3
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=ddf0cfe0200a78301be8b1d7b78fb645
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=2cf3d40457c9435953c26b8e74c24432
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=5fb2b55e46097825cba505848cb839cb
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=4d39ec6d8748e038ab04a0b27f7382a1
SUSE Linux Enterprise 10 SP3 DEBUGINFO
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=ddf0cfe0200a78301be8b1d7b78fb645
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=2cf3d40457c9435953c26b8e74c24432
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=5fb2b55e46097825cba505848cb839cb
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=4d39ec6d8748e038ab04a0b27f7382a1
SUSE Linux Enterprise Desktop 10 SP3
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=ddf0cfe0200a78301be8b1d7b78fb645
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=4d39ec6d8748e038ab04a0b27f7382a1
SUSE Linux Enterprise Desktop 10 SP3 for x86
https://login.microfocus.com/nidp/app/login;set_restricted=true&keywords=4d39ec6d8748e038ab04a0b27f7382a1
______________________________________________________________________________
5) Pending Vulnerabilities, Solutions, and Work-Arounds:
- Pending kernel updates for the CVE-2009-3547 issue.
SLES 9 kernels are still in QA and were delayed to build failures. We expect
a release either tomorrow or Monday.
SUSE Linux Enterprise 11 and the openSUSE products use
"mmap_min_addr" protection by default and are default not vulnerable.
The fix will be rolled in into their next update rounds.
______________________________________________________________________________
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
replacing with the name of the file where you saved the
announcement. The output for a valid signature looks like:
gpg: Signature made using RSA key ID 3D25D3D9
gpg: Good signature from "SuSE Security Team "
where 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
to verify the signature of the package, replacing 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-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
.
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