[El-errata] ELSA-2011-2033 Important: Oracle Linux 6 Unbreakable Enterprise kernel security update

Errata Announcements for Oracle Linux el-errata at oss.oracle.com
Mon Nov 28 09:31:08 PST 2011

Oracle Linux Security Advisory ELSA-2011-2033

The following updated rpms for Oracle Linux 6 have been uploaded to the 
Unbreakable Linux Network:




Users with Oracle Linux Premier Support can now use Ksplice to patch 
against this
Security Advisory.

We recommend that all users of  Oracle Linux 6 install these updates.

Users of Ksplice Uptrack can install these updates by running :

# /usr/sbin/uptrack-upgrade -y

On systems that have "autoinstall = yes" in /etc/uptrack/uptrack.conf,
these updates will be installed automatically and you do not need to
take any additional action.

Description of changes:

* CVE-2011-1161: Information leak in transmission logic of TPM driver.

A missing buffer size check in tpm_transmit could allow leaking of
potentially sensitive kernel memory.

* CVE-2011-1162: Information leak in TPM driver.

A flaw in the way memory containing security-related data was handled
in tpm_read() could allow a local, unprivileged user to read the
results of a previously run TPM command.  (CVE-2011-1162, Low)

* CVE-2011-2494: Information leak in task/process statistics.

The I/O statistics from the taskstats subsystem could be read without
any restrictions.  A local, unprivileged user could use this flaw to
gather confidential information, such as the length of a password used
in a process.  (CVE-2011-2494, Low)

* CVE-2011-3188: Weak TCP sequence number generation.

The way IPv4 and IPv6 protocol sequence numbers and fragment IDs were
generated could allow a man-in-the-middle attacker to inject packets
and possibly hijack connections.  Protocol sequence numbers and
fragment IDs are now more random. (CVE-2011-3188, Moderate)

* CVE-2011-1577: Missing boundary checks in GPT partition handling.

A heap overflow flaw in the Linux kernel's EFI GUID Partition Table
(GPT) implementation could allow a local attacker to cause a denial
of service by mounting a disk that contains specially-crafted
partition tables.  (CVE-2011-1577, Low)

* CVE-2011-3191: Memory corruption in CIFS.

A malicious CIFS server could overflow a signed integer value, causing a
memcpy() to scribble over a large amount of memory.

* CVE-2011-3353: Denial of service in FUSE via FUSE_NOTIFY_INVAL_ENTRY.

A buffer overflow flaw was found in the Linux kernel's FUSE
(Filesystem in Userspace) implementation.  A local user in the fuse
group who has access to mount a FUSE file system could use this flaw
to cause a denial of service.  (CVE-2011-3353, Moderate)

* CVE-2011-4326: Denial of service in IPv6 UDP Fragmentation Offload.

A flaw was found in the way the Linux kernel handled fragmented IPv6
UDP datagrams over the bridge with UDP Fragmentation Offload (UFO)
functionality on.  A remote attacker could use this flaw to cause a
denial of service.  (CVE-2011-4326, Important)

* CVE-2011-3593: Denial of service in VLAN with priority tagged frames.

A flaw was found in the way the Linux kernel handled VLAN 0 frames
with the priority tag set.  When using certain network drivers, an
attacker on the local network could use this flaw to cause a denial of
service.  (CVE-2011-3593, Moderate)

* CVE-2011-2699: Predictable IPv6 fragment identification numbers.

IPv6 fragment identification value generation could allow a remote
attacker to disrupt a target system's networking, preventing
legitimate users from accessing its services.  (CVE-2011-2699,


- net: Remove atmclip.h to prevent break kabi check.
- KConfig: add CONFIG_UEK5=n to ol6/config-generic

- ipv6: make fragment identifications less predictable (Joe Jin) 
- vlan: fix panic when handling priority tagged frames (Joe Jin) 
- ipv6: udp: fix the wrong headroom check (Maxim Uvarov) {CVE-2011-4326}
- b43: allocate receive buffers big enough for max frame len + offset 
(Maxim Uvarov) {CVE-2011-3359}
- fuse: check size of FUSE_NOTIFY_INVAL_ENTRY message (Maxim Uvarov) 
- cifs: fix possible memory corruption in CIFSFindNext (Maxim Uvarov) 
- crypto: md5 - Add export support (Maxim Uvarov) {CVE-2011-2699}
- fs/partitions/efi.c: corrupted GUID partition tables can cause kernel 
oops (Maxim Uvarov) {CVE-2011-1577}
- block: use struct parsed_partitions *state universally in partition 
check code (Maxim Uvarov)
- net: Compute protocol sequence numbers and fragment IDs using MD5. 
(Maxim Uvarov) {CVE-2011-3188}
- crypto: Move md5_transform to lib/md5.c (Maxim Uvarov) {CVE-2011-3188}
- perf tools: do not look at ./config for configuration (Maxim Uvarov) 
- Make TASKSTATS require root access (Maxim Uvarov) {CVE-2011-2494}
- TPM: Zero buffer after copying to userspace (Maxim Uvarov) {CVE-2011-1162}
- TPM: Call tpm_transmit with correct size (Maxim Uvarov){CVE-2011-1161}
- fnic: fix panic while booting in fnic(Xiaowei Hu)
- Revert "PCI hotplug: acpiphp: set current_state to D0 in 
register_slot" (Guru Anbalagane)
- xen: drop xen_sched_clock in favour of using plain wallclock time 
(Jeremy Fitzhardinge)

- PCI: Set device power state to PCI_D0 for device without native PM support
   (Ajaykumar Hotchandani) [orabug 13033435]

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