CVE-2018-15471

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    CVE-2018-15471

    Published: 17 Aug 2018Last Modified: 16 Apr 2026

    Summary:

    Details: An issue was discovered in xenvif_set_hash_mapping in drivers/net/xen-netback/hash.c in the Linux kernel through 4.18.1, as used in Xen through 4.11.x and other products. The Linux netback driver allows frontends to control mapping of requests to request queues. When processing a request to set or change this mapping, some input validation (e.g., for an integer overflow) was missing or flawed, leading to OOB access in hash handling. A malicious or buggy frontend may cause the (usually privileged) backend to make out of bounds memory accesses, potentially resulting in one or more of privilege escalation, Denial of Service (DoS), or information leaks.

    References: https://usn.ubuntu.com/3819-1/, https://usn.ubuntu.com/3820-1/, https://usn.ubuntu.com/3820-2/, https://usn.ubuntu.com/3820-3/, https://www.debian.org/security/2018/dsa-4313, http://xenbits.xen.org/xsa/advisory-270.html, https://bugs.chromium.org/p/project-zero/issues/detail?id=1607, https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    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