UBUNTU-CVE-2017-9788

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    UBUNTU-CVE-2017-9788

    Published: 13 Jul 2017Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-9788

    Summary:

    Details: In Apache httpd before 2.2.34 and 2.4.x before 2.4.27, the value placeholder in [Proxy-]Authorization headers of type 'Digest' was not initialized or reset before or between successive key=value assignments by mod_auth_digest. Providing an initial key with no '=' assignment could reflect the stale value of uninitialized pool memory used by the prior request, leading to leakage of potentially confidential information, and a segfault in other cases resulting in denial of service.

    References: https://ubuntu.com/security/CVE-2017-9788, https://httpd.apache.org/security/vulnerabilities_22.html, https://httpd.apache.org/security/vulnerabilities_24.html, https://lists.apache.org/thread.html/0dd69204a6bd643cc4e9ccd008f07a9375525d977c6ebeb07a881afb@%3Cannounce.httpd.apache.org%3E, https://ubuntu.com/security/notices/USN-3370-1, https://ubuntu.com/security/notices/USN-3370-2, https://www.cve.org/CVERecord?id=CVE-2017-9788

    Affected packages

    Package

    Name: apache2

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.4.7-1ubuntu4.17

    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

    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