CWE
416
Advisory Published

USN-3003-1: Linux kernel vulnerabilities

First published: Fri Jun 10 2016(Updated: )

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)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-4.2.0-38-powerpc-e500mc<4.2.0-38.45
4.2.0-38.45
=15.10
All of
ubuntu/linux-image-4.2.0-38-powerpc64-emb<4.2.0-38.45
4.2.0-38.45
=15.10
All of
ubuntu/linux-image-4.2.0-38-powerpc-smp<4.2.0-38.45
4.2.0-38.45
=15.10
All of
ubuntu/linux-image-4.2.0-38-powerpc64-smp<4.2.0-38.45
4.2.0-38.45
=15.10
All of
ubuntu/linux-image-4.2.0-38-lowlatency<4.2.0-38.45
4.2.0-38.45
=15.10
All of
ubuntu/linux-image-4.2.0-38-generic-lpae<4.2.0-38.45
4.2.0-38.45
=15.10
All of
ubuntu/linux-image-4.2.0-38-generic<4.2.0-38.45
4.2.0-38.45
=15.10

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2016-2117?

    The severity of CVE-2016-2117 is high.

  • How can a remote attacker exploit CVE-2016-2117?

    A remote attacker can exploit CVE-2016-2117 by using the Atheros L2 Ethernet Driver in the Linux kernel to obtain potentially sensitive information from kernel memory.

  • Which versions of Ubuntu are affected by this vulnerability?

    Ubuntu version 15.10 is affected by this vulnerability.

  • How can I fix this vulnerability?

    To fix this vulnerability, update your Ubuntu system to version 4.2.0-38.45 or later.

  • Where can I find more information about CVE-2016-2117?

    You can find more information about CVE-2016-2117 on the Ubuntu website.

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