CVE-2017-9951

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    CVE-2017-9951

    Published: 17 Jul 2017Last Modified: 8 Jul 2026

    Summary:

    Details: The try_read_command function in memcached.c in memcached before 1.4.39 allows remote attackers to cause a denial of service (segmentation fault) via a request to add/set a key, which makes a comparison between signed and unsigned int and triggers a heap-based buffer over-read. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-8705.

    References: http://www.securityfocus.com/bid/99874, https://usn.ubuntu.com/3588-1/, https://github.com/memcached/memcached/wiki/ReleaseNotes1439, https://groups.google.com/forum/message/raw?msg=memcached/ubGWrkmrr4E/nrm1SeVJAQAJ, https://www.debian.org/security/2018/dsa-4218, https://www.twistlock.com/2017/07/13/cve-2017-9951-heap-overflow-memcached-server-1-4-38-twistlock-vulnerability-report/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.4.38
    1.4.37
    1.4.36
    1.4.35
    1.4.34
    1.4.33
    1.4.32
    1.4.31
    1.4.30
    1.4.29
    1.4.28
    1.4.27
    1.4.26
    1.4.25
    1.4.24
    1.4.23
    1.4.22
    1.4.21
    1.4.20
    1.4.19
    1.4.18
    1.4.17
    1.4.16
    1.4.15
    1.4.14
    1.4.13
    1.4.12
    1.4.11-rc1
    1.4.11
    1.4.11-beta1
    1.4.10
    1.4.9
    1.4.8
    1.4.8-rc1
    1.4.7-rc1
    1.4.7
    1.4.6
    1.4.6-rc1
    1.4.5
    1.4.4
    1.4.3
    1.4.3-rc2
    1.4.3-rc1
    1.4.2
    1.4.2-rc1
    1.4.1
    1.4.1-rc1
    1.4.0
    1.4.0-rc1

    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-2017-9951 | CVE-DB