UBUNTU-CVE-2017-18187

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    UBUNTU-CVE-2017-18187

    Published: 14 Feb 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-18187
    Aliases:
    USN-4267-1

    Summary:

    Details: In ARM mbed TLS before 2.7.0, there is a bounds-check bypass through an integer overflow in PSK identity parsing in the ssl_parse_client_psk_identity() function in library/ssl_srv.c.

    References: https://ubuntu.com/security/CVE-2017-18187, https://github.com/ARMmbed/mbedtls/commit/83c9f495ffe70c7dd280b41fdfd4881485a3bc28, https://github.com/ARMmbed/mbedtls/blob/master/ChangeLog, https://ubuntu.com/security/notices/USN-4267-1, https://www.cve.org/CVERecord?id=CVE-2017-18187

    Affected packages

    Package

    Name: mbedtls

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.2.1-2ubuntu0.3

    Affected versions

    2.1.2-1

    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