UBUNTU-CVE-2018-11574

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    UBUNTU-CVE-2018-11574

    Published: 14 Jun 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-11574
    Aliases:
    USN-3810-1

    Summary:

    Details: Improper input validation together with an integer overflow in the EAP-TLS protocol implementation in PPPD may cause a crash, information disclosure, or authentication bypass. This implementation is distributed as a patch for PPPD 0.91, and includes the affected eap.c and eap-tls.c files. Configurations that use the `refuse-app` option are unaffected.

    References: https://ubuntu.com/security/CVE-2018-11574, http://www.openwall.com/lists/oss-security/2018/06/11/1, https://www.nikhef.nl/~janjust/ppp/ppp-2.4.7-eaptls-mppe-1.101.patch, https://ubuntu.com/security/notices/USN-3810-1, https://www.cve.org/CVERecord?id=CVE-2018-11574

    Affected packages

    Package

    Name: ppp

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.4.5-5.1ubuntu2.3

    Affected versions

    2.4.5-5.1ubuntu2
    2.4.5-5.1ubuntu2.1
    2.4.5-5.1ubuntu2.2

    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