UBUNTU-CVE-2018-17182

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    UBUNTU-CVE-2018-17182

    Published: 19 Sept 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-17182
    Aliases:
    USN-3776-1
    USN-3776-2
    USN-3777-1

    Summary:

    Details: An issue was discovered in the Linux kernel through 4.18.8. The vmacache_flush_all function in mm/vmacache.c mishandles sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations.

    References: https://ubuntu.com/security/CVE-2018-17182, https://googleprojectzero.blogspot.com/2018/09/a-cache-invalidation-bug-in-linux.html, https://ubuntu.com/security/notices/USN-3776-1, https://ubuntu.com/security/notices/USN-3776-2, https://ubuntu.com/security/notices/USN-3777-1, https://ubuntu.com/security/notices/USN-3777-2, https://ubuntu.com/security/notices/USN-3777-3, https://www.cve.org/CVERecord?id=CVE-2018-17182

    Affected packages

    Package

    Name: linux-aws

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.4.0-1031.34

    Affected versions

    4.4.0-1002.2
    4.4.0-1003.3
    4.4.0-1005.5
    4.4.0-1006.6
    4.4.0-1009.9
    4.4.0-1010.10
    4.4.0-1011.11
    4.4.0-1012.12
    4.4.0-1014.14
    4.4.0-1016.16
    4.4.0-1017.17
    4.4.0-1019.19
    4.4.0-1022.22
    4.4.0-1023.23
    4.4.0-1024.25
    4.4.0-1025.26
    4.4.0-1027.30
    4.4.0-1028.31
    4.4.0-1029.32

    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