UBUNTU-CVE-2017-18205

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    UBUNTU-CVE-2017-18205

    Published: 27 Feb 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-18205
    Aliases:
    USN-3593-1

    Summary:

    Details: In builtin.c in zsh before 5.4, when sh compatibility mode is used, there is a NULL pointer dereference during processing of the cd command with no argument if HOME is not set.

    References: https://ubuntu.com/security/CVE-2017-18205, https://sourceforge.net/p/zsh/code/ci/eb783754bdb74377f3cea4ceca9c23a02ea1bf58, https://ubuntu.com/security/notices/USN-3593-1, https://www.cve.org/CVERecord?id=CVE-2017-18205

    Affected packages

    Package

    Name: zsh

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -5.0.2-3ubuntu6.1

    Affected versions

    5.0.2-3ubuntu6

    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