UBUNTU-CVE-2018-16890

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    UBUNTU-CVE-2018-16890

    Published: 6 Feb 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-16890
    Aliases:
    USN-3882-1

    Summary:

    Details: libcurl versions from 7.36.0 to before 7.64.0 is vulnerable to a heap buffer out-of-bounds read. The function handling incoming NTLM type-2 messages (`lib/vauth/ntlm.c:ntlm_decode_type2_target`) does not validate incoming data correctly and is subject to an integer overflow vulnerability. Using that overflow, a malicious or broken NTLM server could trick libcurl to accept a bad length + offset combination that would lead to a buffer read out-of-bounds.

    References: https://ubuntu.com/security/CVE-2018-16890, https://curl.haxx.se/docs/CVE-2018-16890.html, https://ubuntu.com/security/notices/USN-3882-1, https://www.cve.org/CVERecord?id=CVE-2018-16890

    Affected packages

    Package

    Name: curl

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -7.47.0-1ubuntu2.12

    Affected versions

    7.43.0-1ubuntu2

    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