USN-3002-1: Linux kernel (Wily HWE) vulnerabilities
10 June 2016
Several security issues were fixed in the kernel.
Releases
Packages
- linux-lts-wily - Linux hardware enablement kernel from Wily for Trusty
Details
Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux
kernel incorrectly enables scatter/gather I/O. A remote attacker could use
this to obtain potentially sensitive information from kernel memory.
(CVE-2016-2117)
Jann Horn discovered that eCryptfs improperly attempted to use the mmap()
handler of a lower filesystem that did not implement one, causing a
recursive page fault to occur. A local unprivileged attacker could use to
cause a denial of service (system crash) or possibly execute arbitrary code
with administrative privileges. (CVE-2016-1583)
Jason A. Donenfeld discovered multiple out-of-bounds reads in the OZMO USB
over wifi device drivers in the Linux kernel. A remote attacker could use
this to cause a denial of service (system crash) or obtain potentially
sensitive information from kernel memory. (CVE-2015-4004)
Ralf Spenneberg discovered that the Linux kernel's GTCO digitizer USB
device driver did not properly validate endpoint descriptors. An attacker
with physical access could use this to cause a denial of service (system
crash). (CVE-2016-2187)
Hector Marco and Ismael Ripoll discovered that the Linux kernel would
improperly disable Address Space Layout Randomization (ASLR) for x86
processes running in 32 bit mode if stack-consumption resource limits were
disabled. A local attacker could use this to make it easier to exploit an
existing vulnerability in a setuid/setgid program. (CVE-2016-3672)
Andrey Konovalov discovered that the CDC Network Control Model USB driver
in the Linux kernel did not cancel work events queued if a later error
occurred, resulting in a use-after-free. An attacker with physical access
could use this to cause a denial of service (system crash). (CVE-2016-3951)
It was discovered that an out-of-bounds write could occur when handling
incoming packets in the USB/IP implementation in the Linux kernel. A remote
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2016-3955)
Vitaly Kuznetsov discovered that the Linux kernel did not properly suppress
hugetlbfs support in X86 paravirtualized guests. An attacker in the guest
OS could cause a denial of service (guest system crash). (CVE-2016-3961)
Kangjie Lu discovered an information leak in the ANSI/IEEE 802.2 LLC type 2
Support implementations in the Linux kernel. A local attacker could use
this to obtain potentially sensitive information from kernel memory.
(CVE-2016-4485)
Kangjie Lu discovered an information leak in the routing netlink socket
interface (rtnetlink) implementation in the Linux kernel. A local attacker
could use this to obtain potentially sensitive information from kernel
memory. (CVE-2016-4486)
Jann Horn discovered that the InfiniBand interfaces within the Linux kernel
could be coerced into overwriting kernel memory. A local unprivileged
attacker could use this to possibly gain administrative privileges on
systems where InifiniBand related kernel modules are loaded.
(CVE-2016-4565)
It was discovered that in some situations the Linux kernel did not handle
propagated mounts correctly. A local unprivileged attacker could use this
to cause a denial of service (system crash). (CVE-2016-4581)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.04
-
linux-image-4.2.0-38-generic
-
4.2.0-38.45~14.04.1
-
linux-image-4.2.0-38-generic-lpae
-
4.2.0-38.45~14.04.1
-
linux-image-4.2.0-38-lowlatency
-
4.2.0-38.45~14.04.1
-
linux-image-4.2.0-38-powerpc-e500mc
-
4.2.0-38.45~14.04.1
-
linux-image-4.2.0-38-powerpc-smp
-
4.2.0-38.45~14.04.1
-
linux-image-4.2.0-38-powerpc64-emb
-
4.2.0-38.45~14.04.1
-
linux-image-4.2.0-38-powerpc64-smp
-
4.2.0-38.45~14.04.1
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
Related notices
- USN-3003-1: linux-image-4.2.0-38-powerpc64-emb, linux-image-4.2.0-38-powerpc64-smp, linux-image-4.2.0-38-generic-lpae, linux-image-4.2.0-38-generic, linux-image-4.2.0-38-powerpc-smp, linux, linux-image-4.2.0-38-powerpc-e500mc, linux-image-4.2.0-38-lowlatency
- USN-3000-1: linux-image-3.16.0-73-powerpc-e500mc, linux-image-3.16.0-73-generic-lpae, linux-lts-utopic, linux-image-3.16.0-73-lowlatency, linux-image-3.16.0-73-powerpc64-emb, linux-image-3.16.0-73-generic, linux-image-3.16.0-73-powerpc-smp, linux-image-extra-3.16.0-73-generic, linux-image-3.16.0-73-powerpc64-smp
- USN-3001-1: linux-image-3.19.0-61-generic, linux-image-3.19.0-61-powerpc64-smp, linux-image-3.19.0-61-powerpc64-emb, linux-lts-vivid, linux-image-3.19.0-61-lowlatency, linux-image-3.19.0-61-generic-lpae, linux-image-3.19.0-61-powerpc-smp, linux-image-extra-3.19.0-61-generic, linux-image-3.19.0-61-powerpc-e500mc
- USN-2989-1: linux-image-3.13.0-87-lowlatency, linux-image-3.13.0-87-powerpc-e500, linux-image-3.13.0-87-generic-lpae, linux-image-3.13.0-87-generic, linux-image-3.13.0-87-powerpc-smp, linux-image-extra-3.13.0-87-generic, linux-image-3.13.0-87-powerpc64-emb, linux, linux-image-3.13.0-87-powerpc64-smp, linux-image-3.13.0-87-powerpc-e500mc
- USN-2998-1: linux-image-3.13.0-88-generic, linux-lts-trusty, linux-image-3.13.0-88-generic-lpae
- USN-3004-1: linux-raspi2, linux-image-4.2.0-1031-raspi2
- USN-2996-1: linux-image-3.2.0-104-generic-pae, linux-image-3.2.0-104-highbank, linux-image-3.2.0-104-powerpc64-smp, linux-image-3.2.0-104-omap, linux, linux-image-3.2.0-104-generic, linux-image-3.2.0-104-powerpc-smp, linux-image-3.2.0-104-virtual
- USN-3005-1: linux-image-4.4.0-24-powerpc64-smp, linux-lts-xenial, linux-image-4.4.0-24-powerpc-e500mc, linux-image-4.4.0-24-generic-lpae, linux-image-4.4.0-24-lowlatency, linux-image-4.4.0-24-generic, linux-image-4.4.0-24-powerpc64-emb, linux-image-extra-4.4.0-24-generic, linux-image-4.4.0-24-powerpc-smp
- USN-2997-1: linux-image-3.2.0-1482-omap4, linux-ti-omap4
- USN-3007-1: linux-raspi2, linux-image-4.4.0-1012-raspi2
- USN-3006-1: linux-image-4.4.0-24-powerpc64-smp, linux-image-4.4.0-24-powerpc-e500mc, linux-image-4.4.0-24-lowlatency, linux-image-4.4.0-24-generic, linux-image-4.4.0-24-powerpc64-emb, linux, linux-image-extra-4.4.0-24-generic, linux-image-4.4.0-24-generic-lpae, linux-image-4.4.0-24-powerpc-smp
- USN-2999-1: linux-image-3.13.0-88-powerpc-smp, linux-image-3.13.0-88-powerpc64-emb, linux-image-3.13.0-88-powerpc64-smp, linux-image-3.13.0-88-lowlatency, linux-image-3.13.0-88-generic, linux, linux-image-3.13.0-88-generic-lpae, linux-image-3.13.0-88-powerpc-e500mc, linux-image-extra-3.13.0-88-generic, linux-image-3.13.0-88-powerpc-e500
- USN-3008-1: linux-snapdragon, linux-image-4.4.0-1015-snapdragon
- USN-2965-3: linux-image-4.4.0-1010-raspi2, linux-raspi2
- USN-2965-4: linux-snapdragon, linux-image-4.4.0-1013-snapdragon
- USN-2965-1: linux-image-4.4.0-22-generic-lpae, linux-image-4.4.0-22-powerpc64-smp, linux-image-extra-4.4.0-22-generic, linux-image-4.4.0-22-powerpc-smp, linux-image-4.4.0-22-powerpc64-emb, linux, linux-image-4.4.0-22-powerpc-e500mc, linux-image-4.4.0-22-generic, linux-image-4.4.0-22-lowlatency
- USN-2965-2: linux-image-4.4.0-22-generic-lpae, linux-image-4.4.0-22-powerpc64-smp, linux-lts-xenial, linux-image-extra-4.4.0-22-generic, linux-image-4.4.0-22-powerpc-smp, linux-image-4.4.0-22-powerpc64-emb, linux-image-4.4.0-22-powerpc-e500mc, linux-image-4.4.0-22-generic, linux-image-4.4.0-22-lowlatency
- USN-3021-2: linux-image-3.2.0-1483-omap4, linux-ti-omap4
- USN-3021-1: linux-image-3.2.0-105-generic, linux-image-3.2.0-105-highbank, linux-image-3.2.0-105-powerpc64-smp, linux-image-3.2.0-105-generic-pae, linux-image-3.2.0-105-virtual, linux, linux-image-3.2.0-105-omap, linux-image-3.2.0-105-powerpc-smp
- USN-3127-1: linux-image-3.13.0-101-powerpc-e500mc, linux-image-3.13.0-101-generic, linux-image-3.13.0-101-powerpc-smp, linux-image-3.13.0-101-powerpc64-emb, linux-image-3.13.0-101-generic-lpae, linux-image-3.13.0-101-powerpc64-smp, linux, linux-image-3.13.0-101-lowlatency, linux-image-3.13.0-101-powerpc-e500, linux-image-extra-3.13.0-101-generic
- USN-3050-1: linux-image-3.2.0-1485-omap4, linux-ti-omap4
- USN-3127-2: linux-image-3.13.0-101-generic, linux-lts-trusty, linux-image-generic-lts-trusty, linux-image-3.13.0-101-generic-lpae, linux-image-generic-lpae-lts-trusty
- USN-3049-1: linux-image-3.2.0-107-powerpc-smp, linux-image-3.2.0-107-powerpc64-smp, linux-image-3.2.0-107-generic-pae, linux-image-3.2.0-107-virtual, linux-image-3.2.0-107-omap, linux, linux-image-3.2.0-107-highbank, linux-image-3.2.0-107-generic
- USN-3018-2: linux-image-3.13.0-91-generic, linux-lts-trusty, linux-image-3.13.0-91-generic-lpae
- USN-3018-1: linux-image-3.13.0-91-generic, linux-image-3.13.0-91-powerpc-e500mc, linux-image-3.13.0-91-generic-lpae, linux-image-3.13.0-91-lowlatency, linux-image-3.13.0-91-powerpc64-emb, linux-image-3.13.0-91-powerpc64-smp, linux, linux-image-3.13.0-91-powerpc-e500, linux-image-extra-3.13.0-91-generic, linux-image-3.13.0-91-powerpc-smp
- USN-3019-1: linux-image-3.16.0-76-lowlatency, linux-image-3.16.0-76-generic, linux-image-3.16.0-76-powerpc64-emb, linux-image-3.16.0-76-powerpc64-smp, linux-image-3.16.0-76-powerpc-e500mc, linux-image-3.16.0-76-generic-lpae, linux-image-3.16.0-76-powerpc-smp, linux-image-extra-3.16.0-76-generic, linux-lts-utopic