CVE-2017-7468

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    CVE-2017-7468

    Published: 16 Jul 2018Last Modified: 8 Jul 2026

    Summary:

    Details: In curl and libcurl 7.52.0 to and including 7.53.1, libcurl would attempt to resume a TLS session even if the client certificate had changed. That is unacceptable since a server by specification is allowed to skip the client certificate check on resume, and may instead use the old identity which was established by the previous certificate (or no certificate). libcurl supports by default the use of TLS session id/ticket to resume previous TLS sessions to speed up subsequent TLS handshakes. They are used when for any reason an existing TLS connection couldn't be kept alive to make the next handshake faster. This flaw is a regression and identical to CVE-2016-5419 reported on August 3rd 2016, but affecting a different version range.

    References: http://www.securityfocus.com/bid/97962, http://www.securitytracker.com/id/1038341, https://curl.haxx.se/docs/adv_20170419.html, https://security.gentoo.org/glsa/201709-14, https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7468

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 95c717bbd9c327c38b4efcc37d5cda29b8ee2a36
    Fixed -None

    Affected versions

    curl-7_53_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