CVE-2015-2318

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    CVE-2015-2318

    Published: 8 Jan 2018Last Modified: 16 Apr 2026

    Summary:

    Details: The TLS stack in Mono before 3.12.1 allows man-in-the-middle attackers to conduct message skipping attacks and consequently impersonate clients by leveraging missing handshake state validation, aka a "SMACK SKIP-TLS" issue.

    References: http://www.mono-project.com/news/2015/03/07/mono-tls-vulnerability/, http://www.openwall.com/lists/oss-security/2015/03/17/9, http://www.securityfocus.com/bid/73253, http://www.ubuntu.com/usn/USN-2547-1, https://bugzilla.redhat.com/show_bug.cgi?id=1202869, https://github.com/mono/mono/commit/1509226c41d74194c146deb173e752b8d3cdeec4, https://mitls.org/pages/attacks/SMACK#skip, https://www.debian.org/security/2015/dsa-3202, http://www.openwall.com/lists/oss-security/2015/03/17/9, https://bugzilla.redhat.com/show_bug.cgi?id=1202869

    Affected packages

    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