UBUNTU-CVE-2018-19052

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    UBUNTU-CVE-2018-19052

    Published: 7 Nov 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-19052
    Aliases:
    USN-4775-1

    Summary:

    Details: An issue was discovered in mod_alias_physical_handler in mod_alias.c in lighttpd before 1.4.50. There is potential ../ path traversal of a single directory above an alias target, with a specific mod_alias configuration where the matched alias lacks a trailing '/' character, but the alias target filesystem path does have a trailing '/' character.

    References: https://ubuntu.com/security/CVE-2018-19052, https://github.com/lighttpd/lighttpd1.4/commit/2105dae0f9d7a964375ce681e53cb165375f84c1, https://ubuntu.com/security/notices/USN-4775-1, https://www.cve.org/CVERecord?id=CVE-2018-19052

    Affected packages

    Package

    Name: lighttpd

    Purl: pkg:deb/ubuntu/[email protected]+nmu2ubuntu2.1+esm1?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.4.33-1+nmu2ubuntu2.1+esm1

    Affected versions

    1.4.31-3ubuntu3
    1.4.33-1ubuntu1
    1.4.33-1+nmu2ubuntu1
    1.4.33-1+nmu2ubuntu2
    1.4.33-1+nmu2ubuntu2.1

    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
    UBUNTU-CVE-2018-19052 | CVE-DB