UBUNTU-CVE-2018-1312

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    UBUNTU-CVE-2018-1312

    Published: 26 Mar 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-1312

    Summary:

    Details: In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection.

    References: https://ubuntu.com/security/CVE-2018-1312, http://www.openwall.com/lists/oss-security/2018/03/24/7, https://httpd.apache.org/security/vulnerabilities_24.html, https://ubuntu.com/security/notices/USN-3627-1, https://ubuntu.com/security/notices/USN-3627-2, https://ubuntu.com/security/notices/USN-3937-2, https://www.cve.org/CVERecord?id=CVE-2018-1312

    Affected packages

    Package

    Name: apache2

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.4.7-1ubuntu4.20

    Affected versions

    2.4.6-2ubuntu2
    2.4.6-2ubuntu3
    2.4.6-2ubuntu4
    2.4.7-1ubuntu1
    2.4.7-1ubuntu2
    2.4.7-1ubuntu3
    2.4.7-1ubuntu4
    2.4.7-1ubuntu4.1
    2.4.7-1ubuntu4.4
    2.4.7-1ubuntu4.5
    2.4.7-1ubuntu4.6
    2.4.7-1ubuntu4.7
    2.4.7-1ubuntu4.8
    2.4.7-1ubuntu4.9
    2.4.7-1ubuntu4.10
    2.4.7-1ubuntu4.11
    2.4.7-1ubuntu4.13
    2.4.7-1ubuntu4.15
    2.4.7-1ubuntu4.16
    2.4.7-1ubuntu4.17
    2.4.7-1ubuntu4.18
    2.4.7-1ubuntu4.19

    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