Mailinglist Archive: opensuse-security-announce (13 mails)

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[security-announce] SUSE Security Announcement: Linux kernel (SUSE-SA:2008:053)
  • From: Marcus Meissner <meissner@xxxxxxx>
  • Date: Mon, 27 Oct 2008 17:50:21 +0100
  • Message-id: <4905f14d.jYzDOOcuYKr8nsgh%meissner@xxxxxxx>

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______________________________________________________________________________

SUSE Security Announcement

Package: kernel
Announcement ID: SUSE-SA:2008:053
Date: Mon, 27 Oct 2008 18:00:00 +0000
Affected Products: openSUSE 11.0
Vulnerability Type: remote denial of service
Severity (1-10): 7
SUSE Default Package: yes
Cross-References: CVE-2008-3525, CVE-2008-3526, CVE-2008-3528
CVE-2008-3792, CVE-2008-3911, CVE-2008-4113
CVE-2008-4410, CVE-2008-4445, CVE-2008-4576
CVE-2008-4618

Content of This Advisory:
1) Security Vulnerability Resolved:
Linux kernel security problem
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 patch updates the openSUSE 11.0 kernel to the 2.6.25.18 stable
release.

It also includes bugfixes and security fixes:

CVE-2008-4410: The vmi_write_ldt_entry function in
arch/x86/kernel/vmi_32.c in the Virtual Machine Interface (VMI) in the
Linux kernel 2.6.26.5 invokes write_idt_entry where write_ldt_entry
was intended, which allows local users to cause a denial of service
(persistent application failure) via crafted function calls, related
to the Java Runtime Environment (JRE) experiencing improper LDT
selector state.

CVE-2008-4618: Fixed a kernel panic in SCTP while process protocol
violation parameter.

CVE-2008-3528: The ext[234] filesystem code fails to properly handle
corrupted data structures. With a mounted filesystem image or partition
that have corrupted dir->i_size and dir->i_blocks, a user performing
either a read or write operation on the mounted image or partition
can lead to a possible denial of service by spamming the logfile.

CVE-2008-3526: Integer overflow in the sctp_setsockopt_auth_key
function in net/sctp/socket.c in the Stream Control Transmission
Protocol (sctp) implementation in the Linux kernel allows remote
attackers to cause a denial of service (panic) or possibly have
unspecified other impact via a crafted sca_keylength field associated
with the SCTP_AUTH_KEY option.

CVE-2008-3525: Added missing capability checks in sbni_ioctl().

CVE-2008-4576: SCTP in Linux kernel before 2.6.25.18 allows remote
attackers to cause a denial of service (OOPS) via an INIT-ACK
that states the peer does not support AUTH, which causes the
sctp_process_init function to clean up active transports and triggers
the OOPS when the T1-Init timer expires.

CVE-2008-4445: The sctp_auth_ep_set_hmacs function in net/sctp/auth.c
in the Stream Control Transmission Protocol (sctp) implementation
in the Linux kernel before 2.6.26.4, when the SCTP-AUTH extension
is enabled, does not verify that the identifier index is within the
bounds established by SCTP_AUTH_HMAC_ID_MAX, which allows local users
to obtain sensitive information via a crafted SCTP_HMAC_IDENT IOCTL
request involving the sctp_getsockopt function.

CVE-2008-3792: net/sctp/socket.c in the Stream Control Transmission
Protocol (sctp) implementation in the Linux kernel 2.6.26.3 does not
verify that the SCTP-AUTH extension is enabled before proceeding
with SCTP-AUTH API functions, which allows attackers to cause
a denial of service (panic) via vectors that result in calls to
(1) sctp_setsockopt_auth_chunk, (2) sctp_setsockopt_hmac_ident,
(3) sctp_setsockopt_auth_key, (4) sctp_setsockopt_active_key,
(5) sctp_setsockopt_del_key, (6) sctp_getsockopt_maxburst, (7)
sctp_getsockopt_active_key, (8) sctp_getsockopt_peer_auth_chunks, or
(9) sctp_getsockopt_local_auth_chunks.

CVE-2008-4113: The sctp_getsockopt_hmac_ident function in
net/sctp/socket.c in the Stream Control Transmission Protocol (sctp)
implementation in the Linux kernel before 2.6.26.4, when the SCTP-AUTH
extension is enabled, relies on an untrusted length value to limit
copying of data from kernel memory, which allows local users to
obtain sensitive information via a crafted SCTP_HMAC_IDENT IOCTL
request involving the sctp_getsockopt function.

CVE-2008-3911: The proc_do_xprt function in net/sunrpc/sysctl.c in
the Linux kernel 2.6.26.3 does not check the length of a certain
buffer obtained from user space, which allows local users to overflow
a stack-based buffer and have unspecified other impact via a crafted
read system call for the /proc/sys/sunrpc/transports file.

2) Solution or Work-Around

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

3) Special Instructions and Notes

Please reboot your machine after installing the kernel.

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.


x86 Platform:

openSUSE 11.0:

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/kernel-debug-2.6.25.18-0.2.i586.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/kernel-default-2.6.25.18-0.2.i586.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/kernel-pae-2.6.25.18-0.2.i586.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/kernel-rt-2.6.25.18-0.2.i586.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/kernel-rt_debug-2.6.25.18-0.2.i586.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/kernel-source-2.6.25.18-0.2.i586.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/kernel-syms-2.6.25.18-0.2.i586.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/kernel-vanilla-2.6.25.18-0.2.i586.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/i586/kernel-xen-2.6.25.18-0.2.i586.rpm

Platform Independent:

openSUSE 11.0:

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/noarch/kernel-docs-2.6.25.18-0.2.noarch.rpm

Power PC Platform:

openSUSE 11.0:

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/ppc/kernel-default-2.6.25.18-0.2.ppc.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/ppc/kernel-kdump-2.6.25.18-0.2.ppc.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/ppc/kernel-ppc64-2.6.25.18-0.2.ppc.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/ppc/kernel-ps3-2.6.25.18-0.2.ppc.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/ppc/kernel-source-2.6.25.18-0.2.ppc.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/ppc/kernel-syms-2.6.25.18-0.2.ppc.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/ppc/kernel-vanilla-2.6.25.18-0.2.ppc.rpm

x86-64 Platform:

openSUSE 11.0:

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/x86_64/kernel-debug-2.6.25.18-0.2.x86_64.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/x86_64/kernel-default-2.6.25.18-0.2.x86_64.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/x86_64/kernel-rt-2.6.25.18-0.2.x86_64.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/x86_64/kernel-rt_debug-2.6.25.18-0.2.x86_64.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/x86_64/kernel-source-2.6.25.18-0.2.x86_64.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/x86_64/kernel-syms-2.6.25.18-0.2.x86_64.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/x86_64/kernel-vanilla-2.6.25.18-0.2.x86_64.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/x86_64/kernel-xen-2.6.25.18-0.2.x86_64.rpm

Sources:

openSUSE 11.0:

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/src/kernel-debug-2.6.25.18-0.2.nosrc.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/src/kernel-default-2.6.25.18-0.2.nosrc.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/src/kernel-docs-2.6.25.18-0.2.src.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/src/kernel-kdump-2.6.25.18-0.2.nosrc.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/src/kernel-pae-2.6.25.18-0.2.nosrc.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/src/kernel-ppc64-2.6.25.18-0.2.nosrc.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/src/kernel-ps3-2.6.25.18-0.2.nosrc.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/src/kernel-rt-2.6.25.18-0.2.nosrc.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/src/kernel-rt_debug-2.6.25.18-0.2.nosrc.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/src/kernel-source-2.6.25.18-0.2.src.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/src/kernel-syms-2.6.25.18-0.2.src.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/src/kernel-vanilla-2.6.25.18-0.2.nosrc.rpm

http://download.opensuse.org/pub/opensuse/update/11.0/rpm/src/kernel-xen-2.6.25.18-0.2.nosrc.rpm

______________________________________________________________________________

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@xxxxxxx>"

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@xxxxxxx 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@xxxxxxxxxxxx
- 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@xxxxxxxxxxxx>.

opensuse-security-announce@xxxxxxxxxxxx
- 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@xxxxxxxxxxxx>.

=====================================================================
SUSE's security contact is <security@xxxxxxxx> or <security@xxxxxxx>.
The <security@xxxxxxx> 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@xxxxxxx>
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build@xxxxxxx>

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