CWE
119
Advisory Published

USN-3162-2: Linux kernel (Raspberry Pi 2) vulnerabilities

First published: Tue Dec 20 2016(Updated: )

CAI Qian discovered that shared bind mounts in a mount namespace exponentially added entries without restriction to the Linux kernel's mount table. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-6213) Andreas Gruenbacher and Jan Kara discovered that the filesystem implementation in the Linux kernel did not clear the setgid bit during a setxattr call. A local attacker could use this to possibly elevate group privileges. (CVE-2016-7097) Marco Grassi discovered that the driver for Areca RAID Controllers in the Linux kernel did not properly validate control messages. A local attacker could use this to cause a denial of service (system crash) or possibly gain privileges. (CVE-2016-7425) It was discovered that the KVM implementation for x86/x86_64 in the Linux kernel could dereference a null pointer. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the KVM host. (CVE-2016-8630) Eyal Itkin discovered that the IP over IEEE 1394 (FireWire) implementation in the Linux kernel contained a buffer overflow when handling fragmented packets. A remote attacker could use this to possibly execute arbitrary code with administrative privileges. (CVE-2016-8633) Marco Grassi discovered that the TCP implementation in the Linux kernel mishandles socket buffer (skb) truncation. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-8645) It was discovered that the keyring implementation in the Linux kernel improperly handled crypto registration in conjunction with successful key- type registration. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-9313) Andrey Konovalov discovered that the SCTP implementation in the Linux kernel improperly handled validation of incoming data. A remote attacker could use this to cause a denial of service (system crash). (CVE-2016-9555)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-4.8.0-1021-raspi2<4.8.0-1021.24
4.8.0-1021.24
=16.10
All of
ubuntu/linux-image-raspi2<4.8.0.1021.24
4.8.0.1021.24
=16.10

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID of this security advisory?

    The vulnerability ID of this security advisory is USN-3162-2.

  • What is the severity of the CVE-2016-6213 vulnerability?

    The severity of the CVE-2016-6213 vulnerability is not specified in the security advisory.

  • How can a local attacker exploit CVE-2016-6213?

    A local attacker can exploit CVE-2016-6213 by using shared bind mounts in a mount namespace to cause a denial of service (system crash).

  • Which versions of Ubuntu are affected by this vulnerability?

    Ubuntu Ubuntu 16.10 is affected by this vulnerability.

  • How can I fix the CVE-2016-6213 vulnerability?

    To fix the CVE-2016-6213 vulnerability, update your system to version 4.8.0-1021.24 of the Linux kernel.

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