CWE
362
Advisory Published

USN-3657-1: Linux kernel (Raspberry Pi 2) vulnerabilities

First published: Tue May 22 2018(Updated: )

It was discovered that the netlink subsystem in the Linux kernel did not properly restrict observations of netlink messages to the appropriate net namespace. A local attacker could use this to expose sensitive information (kernel netlink traffic). (CVE-2017-17449) Tuba Yavuz discovered that a double-free error existed in the USBTV007 driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-17975) It was discovered that a race condition existed in the Device Mapper component of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18203) It was discovered that an infinite loop could occur in the madvise(2) implementation in the Linux kernel in certain circumstances. A local attacker could use this to cause a denial of service (system hang). (CVE-2017-18208) Silvio Cesare discovered a buffer overwrite existed in the NCPFS implementation in the Linux kernel. A remote attacker controlling a malicious NCPFS server could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-8822)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-4.13.0-1020-raspi2<4.13.0-1020.21
4.13.0-1020.21
Ubuntu Ubuntu=17.10
All of
ubuntu/linux-image-raspi2<4.13.0.1020.18
4.13.0.1020.18
Ubuntu Ubuntu=17.10

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this advisory?

    The vulnerability ID for this advisory is CVE-2017-17449.

  • What is the impact of CVE-2017-17449?

    CVE-2017-17449 allows a local attacker to expose sensitive information by observing kernel netlink traffic.

  • Which software versions are affected by this vulnerability?

    This vulnerability affects Ubuntu 17.10 with the Linux kernel version linux-image-4.13.0-1020-raspi2 up to 4.13.0-1020.21.

  • Is there a fix available for this vulnerability?

    Yes, the fix for this vulnerability is to upgrade the Linux kernel to version 4.13.0-1020.21 for linux-image-4.13.0-1020-raspi2.

  • Where can I find more information about this vulnerability?

    You can find more information about this vulnerability at the following references: [CVE-2017-17449](https://ubuntu.com/security/CVE-2017-17449), [CVE-2017-17975](https://ubuntu.com/security/CVE-2017-17975), [CVE-2017-18203](https://ubuntu.com/security/CVE-2017-18203).

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