Details
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Improvement
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Resolution: Fixed
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Minor
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None
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None
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11766
Description
This update fixes the following security issues:
- A flaw was found in the way the Linux kernel's IPv6 implementation
handled certain UDP packets when the UDP Fragmentation Offload (UFO)
feature was enabled. A remote attacker could use this flaw to crash the
system or, potentially, escalate their privileges on the system.
(CVE-2013-4387, Important)
- A flaw was found in the way the Linux kernel handled the creation of
temporary IPv6 addresses. If the IPv6 privacy extension was enabled
(/proc/sys/net/ipv6/conf/eth0/use_tempaddr set to '2'), an attacker on the
local network could disable IPv6 temporary address generation, leading to a
potential information disclosure. (CVE-2013-0343, Moderate)
- A flaw was found in the way the Linux kernel handled HID (Human Interface
Device) reports with an out-of-bounds Report ID. An attacker with physical
access to the system could use this flaw to crash the system or,
potentially, escalate their privileges on the system. (CVE-2013-2888,
Moderate)
- An off-by-one flaw was found in the way the ANSI CPRNG implementation in
the Linux kernel processed non-block size aligned requests. This could lead
to random numbers being generated with less bits of entropy than expected
when ANSI CPRNG was used. (CVE-2013-4345, Moderate)
- It was found that the fix for CVE-2012-2375 released via RHSA-2012:1580
accidentally removed a check for small-sized result buffers. A local,
unprivileged user with access to an NFSv4 mount with ACL support could use
this flaw to crash the system or, potentially, escalate their privileges on
the system . (CVE-2013-4591, Moderate)
- A flaw was found in the way IOMMU memory mappings were handled when
moving memory slots. A malicious user on a KVM host who has the ability to
assign a device to a guest could use this flaw to crash the host.
(CVE-2013-4592, Moderate)
- Heap-based buffer overflow flaws were found in the way the Zeroplus and
Pantherlord/GreenAsia game controllers handled HID reports. An attacker
with physical access to the system could use these flaws to crash the
system or, potentially, escalate their privileges on the system.
(CVE-2013-2889, CVE-2013-2892, Moderate)
- Two information leak flaws were found in the logical link control (LLC)
implementation in the Linux kernel. A local, unprivileged user could use
these flaws to leak kernel stack memory to user space. (CVE-2012-6542,
CVE-2013-3231, Low)
- A heap-based buffer overflow in the way the tg3 Ethernet driver parsed
the vital product data (VPD) of devices could allow an attacker with
physical access to a system to cause a denial of service or, potentially,
escalate their privileges. (CVE-2013-1929, Low)
- Information leak flaws in the Linux kernel could allow a privileged,
local user to leak kernel memory to user space. (CVE-2012-6545,
CVE-2013-1928, CVE-2013-2164, CVE-2013-2234, Low)
- A format string flaw was found in the Linux kernel's block layer.
A privileged, local user could potentially use this flaw to escalate their
privileges to kernel level (ring0). (CVE-2013-2851, Low)
Red Hat would like to thank Stephan Mueller for reporting CVE-2013-4345,
and Kees Cook for reporting CVE-2013-2851.
This update also fixes several hundred bugs and adds enhancements. Refer to
the Red Hat Enterprise Linux 6.5 Release Notes for information on the most
significant of these changes, and the Technical Notes for further
information, both linked to in the References.
All Red Hat Enterprise Linux 6 users are advised to install these updated
packages, which correct these issues, and fix the bugs and add the
enhancements noted in the Red Hat Enterprise Linux 6.5 Release Notes and
Technical Notes. The system must be rebooted for this update to take
effect.
Bugs fixed (https://bugzilla.redhat.com/):
627128 - kernel spec: devel_post macro: hardlink fc typo
734728 - cifs: asynchronous readpages support
796364 - sbc_fitpc2_wdt NULL pointer dereference
815908 - NFSv4 server support for numeric IDs
831158 - dm-crypt: Fix possible mempool deadlock
834919 - JBD: Spotted dirty metadata buffer
851269 - kernel-debug: enable CONFIG_JBD_DEBUG
856764 - RHEL 6.5 Common Network Backports Tracker
859562 - DM RAID: 'sync' table argument is ineffective.
873659 - virt: Clocksource tsc unstable (delta = 474712882 ns). Enable clocksource failover by adding clocksource_failover kernel parameter.
876528 - Set-group-ID (SGID) bit not inherited on XFS file system with ACLs on directory
889973 - "kernel: device-mapper: table: 253:3: snapshot-origin: unknown target type"
903297 - FCoE target: backport drivers/target from upstream
908093 - gfs2: withdraw does not wait for gfs_controld
913660 - nfs client crashes during open
914664 - CVE-2013-0343 kernel: handling of IPv6 temporary addresses
918239 - kernel-2.6.32-358.0.1 doesn't boot at virtual machine on Xen Cloud Platform
920752 - cannot open device nodes for writing on RO filesystems
922322 - CVE-2012-6542 Kernel: llc: information leak via getsockname
922404 - CVE-2012-6545 Kernel: Bluetooth: RFCOMM - information leak
928207 - transfer data using two port from guest to host,guest hang and call trace
949567 - CVE-2013-1928 Kernel: information leak in fs/compat_ioctl.c VIDEO_SET_SPU_PALETTE
949932 - CVE-2013-1929 Kernel: tg3: buffer overflow in VPD firmware parsing
953097 - virtio-rng, boot the guest with two rng device, cat /dev/hwrng in guest, guest will call trace
956094 - CVE-2013-3231 Kernel: llc: Fix missing msg_namelen update in llc_ui_recvmsg
969515 - CVE-2013-2851 kernel: block: passing disk names as format strings
973100 - CVE-2013-2164 Kernel: information leak in cdrom driver
980995 - CVE-2013-2234 Kernel: net: information leak in AF_KEY notify
990806 - BUG: soft lockup - CPU#0 stuck for 63s! [killall5:7385]
999890 - CVE-2013-2889 Kernel: HID: zeroplus: heap overflow flaw
1000429 - CVE-2013-2892 Kernel: HID: pantherlord: heap overflow flaw
1000451 - CVE-2013-2888 Kernel: HID: memory corruption flaw
1007690 - CVE-2013-4345 kernel: ansi_cprng: off by one error in non-block size request
1011927 - CVE-2013-4387 Kernel: net: IPv6: panic when UFO=On for an interface
1014867 - xfssyncd and flush device threads hang in xlog_grant_head_wait
1031678 - CVE-2013-4591 kernel: nfs: missing check for buffer length in __nfs4_get_acl_uncached
1031702 - CVE-2013-4592 kernel: kvm: memory leak when memory slot is moved with assigned device