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______________________________________________________________________________
SUSE Security Announcement
Package: kernel
Announcement ID: SUSE-SA:2011:017
Date: Mon, 18 Apr 2011 11:00:00 +0000
Affected Products: openSUSE 11.2
Vulnerability Type: local privilege escalation, remote denial of service
CVSS v2 Base Score: 7.1 (AV:N/AC:M/Au:N/C:N/I:N/A:C)
SUSE Default Package: yes
Cross-References: CVE-2010-1173, CVE-2010-3699, CVE-2010-3705
CVE-2010-3848, CVE-2010-3849, CVE-2010-3850
CVE-2010-3858, CVE-2010-3875, CVE-2010-3876
CVE-2010-3877, CVE-2010-3880, CVE-2010-4072
CVE-2010-4073, CVE-2010-4075, CVE-2010-4076
CVE-2010-4077, CVE-2010-4083, CVE-2010-4163
CVE-2010-4243, CVE-2010-4248, CVE-2010-4342
CVE-2010-4346, CVE-2010-4527, CVE-2010-4529
CVE-2010-4648, CVE-2010-4649, CVE-2010-4650
CVE-2010-4668, CVE-2011-0521, CVE-2011-0711
CVE-2011-0712, CVE-2011-1010, CVE-2011-1012
CVE-2011-1082, CVE-2011-1090, CVE-2011-1163
CVE-2011-1182, CVE-2011-1476, CVE-2011-1477
CVE-2011-1493
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
The openSUSE 11.2 kernel was updated to fix lots of security issues.
This will probably be the last 11.2 kernel update released by the
SUSE Security Team, as our suppport for 11.2 ends in 1 month.
Following security issues were fixed:
CVE-2011-1493: In the rose networking stack, when parsing the
FAC_NATIONAL_DIGIS facilities field, it was possible for a remote
host to provide more digipeaters than expected, resulting in heap
corruption. Check against ROSE_MAX_DIGIS to prevent overflows,
and abort facilities parsing on failure.
CVE-2011-1182: Local attackers could send signals to their programs
that looked like coming from the kernel, potentially gaining privileges
in the context of setuid programs.
CVE-2011-1082: The epoll subsystem in Linux did not prevent users
from creating circular epoll file structures, potentially leading to
a denial of service (kernel deadlock).
CVE-2011-1163: The code for evaluating OSF partitions (in
fs/partitions/osf.c) contained a bug that leaks data from kernel heap
memory to userspace for certain corrupted OSF partitions.
CVE-2011-1012: The code for evaluating LDM partitions (in
fs/partitions/ldm.c) contained a bug that could crash the kernel for
certain corrupted LDM partitions.
CVE-2011-1010: The code for evaluating Mac partitions (in
fs/partitions/mac.c) contained a bug that could crash the kernel for
certain corrupted Mac partitions.
CVE-2011-1476: Specially crafted requests may be written to
/dev/sequencer resulting in an underflow when calculating a size for a
copy_from_user() operation in the driver for MIDI interfaces. On x86,
this just returns an error, but it could have caused memory corruption
on other architectures. Other malformed requests could have resulted
in the use of uninitialized variables.
CVE-2011-1477: Due to a failure to validate user-supplied indexes in
the driver for Yamaha YM3812 and OPL-3 chips, a specially crafted
ioctl request could have been sent to /dev/sequencer, resulting in
reading and writing beyond the bounds of heap buffers, and potentially
allowing privilege escalation.
CVE-2011-1090: A page allocator issue in NFS v4 ACL handling that
could lead to a denial of service (crash) was fixed.
CVE-2010-3880: net/ipv4/inet_diag.c in the Linux kernel did not
properly audit INET_DIAG bytecode, which allowed local users
to cause a denial of service (kernel infinite loop) via crafted
INET_DIAG_REQ_BYTECODE instructions in a netlink message that contains
multiple attribute elements, as demonstrated by INET_DIAG_BC_JMP
instructions.
CVE-2011-0521: The dvb_ca_ioctl function in
drivers/media/dvb/ttpci/av7110_ca.c in the Linux kernel did not check
the sign of a certain integer field, which allowed local users to cause
a denial of service (memory corruption) or possibly have unspecified
other impact via a negative value.
CVE-2010-3875: The ax25_getname function in net/ax25/af_ax25.c in the
Linux kernel did not initialize a certain structure, which allowed
local users to obtain potentially sensitive information from kernel
stack memory by reading a copy of this structure.
CVE-2010-3876: net/packet/af_packet.c in the Linux kernel did not
properly initialize certain structure members, which allowed local
users to obtain potentially sensitive information from kernel stack
memory by leveraging the CAP_NET_RAW capability to read copies of
the applicable structures.
CVE-2010-3877: The get_name function in net/tipc/socket.c in the
Linux kernel did not initialize a certain structure, which allowed
local users to obtain potentially sensitive information from kernel
stack memory by reading a copy of this structure.
CVE-2010-3705: The sctp_auth_asoc_get_hmac function in net/sctp/auth.c
in the Linux kernel did not properly validate the hmac_ids array of an
SCTP peer, which allowed remote attackers to cause a denial of service
(memory corruption and panic) via a crafted value in the last element
of this array.
CVE-2011-0711: A stack memory information leak in the xfs FSGEOMETRY_V1
ioctl was fixed.
CVE-2011-0712: Multiple buffer overflows in the caiaq Native
Instruments USB audio functionality in the Linux kernel might have
allowed attackers to cause a denial of service or possibly have
unspecified other impact via a long USB device name, related to (1)
the snd_usb_caiaq_audio_init function in sound/usb/caiaq/audio.c and
(2) the snd_usb_caiaq_midi_init function in sound/usb/caiaq/midi.c.
CVE-2010-1173: The sctp_process_unk_param function in
net/sctp/sm_make_chunk.c in the Linux kernel, when SCTP is enabled,
allowed remote attackers to cause a denial of service (system crash)
via an SCTPChunkInit packet containing multiple invalid parameters
that require a large amount of error data.
CVE-2010-4075: The uart_get_count function in
drivers/serial/serial_core.c in the Linux kernel did not properly
initialize a certain structure member, which allowed local users to
obtain potentially sensitive information from kernel stack memory
via a TIOCGICOUNT ioctl call.
CVE-2010-4076: The rs_ioctl function in drivers/char/amiserial.c in the
Linux kernel did not properly initialize a certain structure member,
which allowed local users to obtain potentially sensitive information
from kernel stack memory via a TIOCGICOUNT ioctl call.
CVE-2010-4077: The ntty_ioctl_tiocgicount function in
drivers/char/nozomi.c in the Linux kernel did not properly initialize
a certain structure member, which allowed local users to obtain
potentially sensitive information from kernel stack memory via a
TIOCGICOUNT ioctl call.
CVE-2010-4248: Race condition in the __exit_signal function in
kernel/exit.c in the Linux kernel allowed local users to cause a denial
of service via vectors related to multi threaded exec, the use of a
thread group leader in kernel/posix-cpu-timers.c, and the selection
of a new thread group leader in the de_thread function in fs/exec.c.
CVE-2010-4243: fs/exec.c in the Linux kernel did not enable the OOM
Killer to assess use of stack memory by arrays representing the (1)
arguments and (2) environment, which allows local users to cause a
denial of service (memory consumption) via a crafted exec system call,
aka an "OOM dodging issue," a related issue to CVE-2010-3858.
CVE-2010-4648: Fixed cryptographic weakness potentially leaking
information to remote (but physically nearby) users in the Orinoco
wireless driver.
CVE-2010-4527: The load_mixer_volumes function in sound/oss/soundcard.c
in the OSS sound subsystem in the Linux kernel incorrectly expected
that a certain name field ends with a '\0' character, which allowed
local users to conduct buffer overflow attacks and gain privileges,
or possibly obtain sensitive information from kernel memory, via a
SOUND_MIXER_SETLEVELS ioctl call.
CVE-2010-4668: The blk_rq_map_user_iov function in block/blk-map.c
in the Linux kernel allowed local users to cause a denial of service
(panic) via a zero-length I/O request in a device ioctl to a SCSI
device, related to an unaligned map. NOTE: this vulnerability exists
because of an incomplete fix for CVE-2010-4163.
CVE-2010-4650: A kernel buffer overflow in the cuse server module
was fixed, which might have allowed local privilege escalation.
However only CUSE servers could exploit it and /dev/cuse is normally
restricted to root.
CVE-2010-4649: Integer overflow in the ib_uverbs_poll_cq function
in drivers/infiniband/core/uverbs_cmd.c in the Linux kernel allowed
local users to cause a denial of service (memory corruption) or
possibly have unspecified other impact via a large value of a certain
structure member.
CVE-2010-4346: The install_special_mapping function in mm/mmap.c in
the Linux kernel did not make an expected security_file_mmap function
call, which allowed local users to bypass intended mmap_min_addr
restrictions and possibly conduct NULL pointer dereference attacks
via a crafted assembly-language application.
CVE-2010-4529: Integer underflow in the irda_getsockopt function in
net/irda/af_irda.c in the Linux kernel on platforms other than x86
allowed local users to obtain potentially sensitive information from
kernel heap memory via an IRLMP_ENUMDEVICES getsockopt call.
CVE-2010-4342: The aun_incoming function in net/econet/af_econet.c in
the Linux kernel, when Econet is enabled, allowed remote attackers
to cause a denial of service (NULL pointer dereference and OOPS)
by sending an Acorn Universal Networking (AUN) packet over UDP.
CVE-2010-3849: The econet_sendmsg function in net/econet/af_econet.c
in the Linux kernel, when an econet address is configured, allowed
local users to cause a denial of service (NULL pointer dereference
and OOPS) via a sendmsg call that specifies a NULL value for the
remote address field.
CVE-2010-3848: Stack-based buffer overflow in the econet_sendmsg
function in net/econet/af_econet.c in the Linux kernel when an econet
address is configured, allowed local users to gain privileges by
providing a large number of iovec structures.
CVE-2010-3850: The ec_dev_ioctl function in net/econet/af_econet.c
in the Linux kernel did not require the CAP_NET_ADMIN capability,
which allowed local users to bypass intended access restrictions and
configure econet addresses via an SIOCSIFADDR ioctl call.
CVE-2010-3699: The backend driver in Xen 3.x allows guest OS users to
cause a denial of service via a kernel thread leak, which prevents the
device and guest OS from being shut down or create a zombie domain,
causes a hang in zenwatch, or prevents unspecified xm commands from
working properly, related to (1) netback, (2) blkback, or (3) blktap.
CVE-2010-4073: The ipc subsystem in the Linux kernel did not
initialize certain structures, which allowed local users to obtain
potentially sensitive information from kernel stack memory via
vectors related to the (1) compat_sys_semctl, (2) compat_sys_msgctl,
and (3) compat_sys_shmctl functions in ipc/compat.c; and the (4)
compat_sys_mq_open and (5) compat_sys_mq_getsetattr functions in
ipc/compat_mq.c.
CVE-2010-4072: The copy_shmid_to_user function in ipc/shm.c in the
Linux kernel did not initialize a certain structure, which allowed
local users to obtain potentially sensitive information from kernel
stack memory via vectors related to the shmctl system call and the
"old shm interface."
CVE-2010-4083: The copy_semid_to_user function in ipc/sem.c in the
Linux kernel did not initialize a certain structure, which allowed
local users to obtain potentially sensitive information from kernel
stack memory via a (1) IPC_INFO, (2) SEM_INFO, (3) IPC_STAT, or (4)
SEM_STAT command in a semctl system call.
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" module or the "zypper" commandline tool. The package and
patch management stack will detect which updates are required and
automatically perform 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 11.2:
http://download.opensuse.org/update/11.2/rpm/i586/kernel-debug-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-debug-base-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-debug-devel-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-default-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-default-base-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-default-devel-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-desktop-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-desktop-base-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-desktop-devel-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-pae-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-pae-base-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-pae-devel-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-syms-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-trace-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-trace-base-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-trace-devel-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-vanilla-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-vanilla-base-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-vanilla-devel-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-xen-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-xen-base-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/kernel-xen-devel-2.6.31.14-0.8.1.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/preload-kmp-default-1.1_2.6.31.14_0.8-6.9.49.i586.rpm
http://download.opensuse.org/update/11.2/rpm/i586/preload-kmp-desktop-1.1_2.6.31.14_0.8-6.9.49.i586.rpm
Platform Independent:
openSUSE 11.2:
http://download.opensuse.org/update/11.2/rpm/noarch/kernel-source-2.6.31.14-0.8.1.noarch.rpm
http://download.opensuse.org/update/11.2/rpm/noarch/kernel-source-vanilla-2.6.31.14-0.8.1.noarch.rpm
x86-64 Platform:
openSUSE 11.2:
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-debug-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-debug-base-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-debug-devel-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-default-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-default-base-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-default-devel-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-desktop-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-desktop-base-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-desktop-devel-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-syms-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-trace-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-trace-base-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-trace-devel-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-vanilla-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-vanilla-base-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-vanilla-devel-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-xen-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-xen-base-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-xen-devel-2.6.31.14-0.8.1.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/preload-kmp-default-1.1_2.6.31.14_0.8-6.9.49.x86_64.rpm
http://download.opensuse.org/update/11.2/rpm/x86_64/preload-kmp-desktop-1.1_2.6.31.14_0.8-6.9.49.x86_64.rpm
Sources:
openSUSE 11.2:
http://download.opensuse.org/update/11.2/rpm/src/kernel-debug-2.6.31.14-0.8.1.nosrc.rpm
http://download.opensuse.org/update/11.2/rpm/src/kernel-default-2.6.31.14-0.8.1.nosrc.rpm
http://download.opensuse.org/update/11.2/rpm/src/kernel-desktop-2.6.31.14-0.8.1.nosrc.rpm
http://download.opensuse.org/update/11.2/rpm/src/kernel-pae-2.6.31.14-0.8.1.nosrc.rpm
http://download.opensuse.org/update/11.2/rpm/src/kernel-source-2.6.31.14-0.8.1.src.rpm
http://download.opensuse.org/update/11.2/rpm/src/kernel-syms-2.6.31.14-0.8.1.src.rpm
http://download.opensuse.org/update/11.2/rpm/src/kernel-trace-2.6.31.14-0.8.1.nosrc.rpm
http://download.opensuse.org/update/11.2/rpm/src/kernel-vanilla-2.6.31.14-0.8.1.nosrc.rpm
http://download.opensuse.org/update/11.2/rpm/src/kernel-xen-2.6.31.14-0.8.1.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@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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