UBUNTU-CVE-2017-7482

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    UBUNTU-CVE-2017-7482

    Published: 27 Jun 2017Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-7482
    Aliases:
    USN-3377-1
    USN-3377-2
    USN-3378-1

    Summary:

    Details: In the Linux kernel before version 4.12, Kerberos 5 tickets decoded when using the RXRPC keys incorrectly assumes the size of a field. This could lead to the size-remaining variable wrapping and the data pointer going over the end of the buffer. This could possibly lead to memory corruption and possible privilege escalation.

    References: https://ubuntu.com/security/CVE-2017-7482, https://git.kernel.org/torvalds/c/5f2f97656ada8d811d3c1bef503ced266fcd53a0, http://seclists.org/oss-sec/2017/q2/602, https://ubuntu.com/security/notices/USN-3377-1, https://ubuntu.com/security/notices/USN-3377-2, https://ubuntu.com/security/notices/USN-3378-1, https://ubuntu.com/security/notices/USN-3378-2, https://ubuntu.com/security/notices/USN-3381-1, https://ubuntu.com/security/notices/USN-3381-2, https://www.cve.org/CVERecord?id=CVE-2017-7482

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-126.175

    Affected versions

    3.11.0-12.19

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High