UBUNTU-CVE-2018-1000140

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    UBUNTU-CVE-2018-1000140

    Published: 23 Mar 2018Last Modified: 22 Apr 2026

    Summary:

    Details: rsyslog librelp version 1.2.14 and earlier contains a Buffer Overflow vulnerability in the checking of x509 certificates from a peer that can result in Remote code execution. This attack appear to be exploitable a remote attacker that can connect to rsyslog and trigger a stack buffer overflow by sending a specially crafted x509 certificate.

    References: https://ubuntu.com/security/CVE-2018-1000140, https://github.com/rsyslog/librelp/blob/532aa362f0f7a8d037505b0a27a1df452f9bac9e/src/tcp.c#L1205, https://lgtm.com/rules/1505913226124/, https://ubuntu.com/security/notices/USN-3612-1, https://ubuntu.com/security/notices/USN-4828-1, https://www.cve.org/CVERecord?id=CVE-2018-1000140

    Affected packages

    Package

    Name: librelp

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.2.2-2ubuntu1.1

    Affected versions

    1.1.4-1

    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