Ubuntu Security Notice USN-2379-1
9th October, 2014
linux vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
Summary
Several security issues were fixed in the kernel.
Software description
Details
Steven Vittitoe reported multiple stack buffer overflows in Linux kernel’s
magicmouse HID driver. A physically proximate attacker could exploit this
flaw to cause a denial of service (system crash) or possibly execute
arbitrary code via specially crafted devices. (CVE-2014-3181)
Ben Hawkes reported some off by one errors for report descriptors in the
Linux kernel’s HID stack. A physically proximate attacker could exploit
these flaws to cause a denial of service (out-of-bounds write) via a
specially crafted device. (CVE-2014-3184)
Several bounds check flaws allowing for buffer overflows were discovered in
the Linux kernel’s Whiteheat USB serial driver. A physically proximate
attacker could exploit these flaws to cause a denial of service (system
crash) via a specially crafted device. (CVE-2014-3185)
Steven Vittitoe reported a buffer overflow in the Linux kernel’s PicoLCD
HID device driver. A physically proximate attacker could exploit this flaw
to cause a denial of service (system crash) or possibly execute arbitrary
code via a specially craft device. (CVE-2014-3186)
A flaw was discovered in the Linux kernel’s associative-array garbage
collection implementation. A local user could exploit this flaw to cause a
denial of service (system crash) or possibly have other unspecified impact
by using keyctl operations. (CVE-2014-3631)
A flaw was discovered in the Linux kernel’s UDF filesystem (used on some
CD-ROMs and DVDs) when processing indirect ICBs. An attacker who can cause
CD, DVD or image file with a specially crafted inode to be mounted can
cause a denial of service (infinite loop or stack consumption).
(CVE-2014-6410)
James Eckersall discovered a buffer overflow in the Ceph filesystem in the
Linux kernel. A remote attacker could exploit this flaw to cause a denial
of service (memory consumption and panic) or possibly have other
unspecified impact via a long unencrypted auth ticket. (CVE-2014-6416)
James Eckersall discovered a flaw in the handling of memory allocation
failures in the Ceph filesystem. A remote attacker could exploit this flaw
to cause a denial of service (system crash) or possibly have unspecified
other impact. (CVE-2014-6417)
James Eckersall discovered a flaw in how the Ceph filesystem validates auth
replies. A remote attacker could exploit this flaw to cause a denial of
service (system crash) or possibly have other unspecified impact.
(CVE-2014-6418)
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 14.04 LTS:
-
linux-image-3.13.0-37-generic-lpae
3.13.0-37.64
-
linux-image-3.13.0-37-lowlatency
3.13.0-37.64
-
linux-image-3.13.0-37-generic
3.13.0-37.64
-
linux-image-3.13.0-37-powerpc64-emb
3.13.0-37.64
-
linux-image-3.13.0-37-powerpc-smp
3.13.0-37.64
-
linux-image-3.13.0-37-powerpc-e500
3.13.0-37.64
-
linux-image-3.13.0-37-powerpc64-smp
3.13.0-37.64
-
linux-image-3.13.0-37-powerpc-e500mc
3.13.0-37.64
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
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. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.
References
CVE-2014-3181,
CVE-2014-3184,
CVE-2014-3185,
CVE-2014-3186,
CVE-2014-3631,
CVE-2014-6410,
CVE-2014-6416,
CVE-2014-6417,
CVE-2014-6418