CVE-2018-20969

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    CVE-2018-20969

    Published: 16 Aug 2019Last Modified: 10 Sept 2026

    Summary:

    Details: do_ed_script in pch.c in GNU patch through 2.7.6 does not block strings beginning with a ! character. NOTE: this is the same commit as for CVE-2019-13638, but the ! syntax is specific to ed, and is unrelated to a shell metacharacter.

    References: http://packetstormsecurity.com/files/154124/GNU-patch-Command-Injection-Directory-Traversal.html, https://access.redhat.com/errata/RHSA-2019:2798, https://access.redhat.com/errata/RHSA-2019:2964, https://access.redhat.com/errata/RHSA-2019:3757, https://access.redhat.com/errata/RHSA-2019:3758, https://access.redhat.com/errata/RHSA-2019:4061, https://git.savannah.gnu.org/cgit/patch.git/commit/?id=3fcd042d26d70856e826a42b5f93dc4854d80bf0, https://seclists.org/bugtraq/2019/Aug/29, https://github.com/irsl/gnu-patch-vulnerabilities

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -3fcd042d26d70856e826a42b5f93dc4854d80bf0

    Affected versions

    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
    CVE-2018-20969 | CVE-DB