CVE-2017-7539

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    CVE-2017-7539

    Published: 26 Jul 2018Last Modified: 8 Jul 2026

    Summary:

    Details: An assertion-failure flaw was found in Qemu before 2.10.1, in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service.

    References: https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=2b0bbc4f8809c972bad134bc1a2570dbb01dea0b, https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=ff82911cd3f69f028f2537825c9720ff78bc3f19, http://www.securityfocus.com/bid/99944, https://access.redhat.com/errata/RHSA-2017:2628, https://access.redhat.com/errata/RHSA-2017:3466, https://access.redhat.com/errata/RHSA-2017:3470, https://access.redhat.com/errata/RHSA-2017:3471, https://access.redhat.com/errata/RHSA-2017:3472, https://access.redhat.com/errata/RHSA-2017:3473, https://access.redhat.com/errata/RHSA-2017:3474, http://www.openwall.com/lists/oss-security/2017/07/21/4, https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7539

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -7851197b812b383ae1208c5d86391c5179c8209d

    Affected versions

    v2.10.0
    v2.10.0-rc4
    v2.10.0-rc3
    v2.10.0-rc2
    v2.10.0-rc1
    v2.10.0-rc0

    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
    CVE-2017-7539 | CVE-DB