PYSEC-2020-217

    Dashboard / Vulnerabilities / PYSEC-2020-217

    PYSEC-2020-217

    Published: 12 Feb 2020Last Modified: 10 Jun 2026

    Summary:

    Details: Git before 1.8.5.6, 1.9.x before 1.9.5, 2.0.x before 2.0.5, 2.1.x before 2.1.4, and 2.2.x before 2.2.1 on Windows and OS X; Mercurial before 3.2.3 on Windows and OS X; Apple Xcode before 6.2 beta 3; mine all versions before 08-12-2014; libgit2 all versions up to 0.21.2; Egit all versions before 08-12-2014; and JGit all versions before 08-12-2014 allow remote Git servers to execute arbitrary commands via a tree containing a crafted .git/config file with (1) an ignorable Unicode codepoint, (2) a git~1/config representation, or (3) mixed case that is improperly handled on a case-insensitive filesystem.

    References: https://news.ycombinator.com/item?id=8769667, http://git-blame.blogspot.com/2014/12/git-1856-195-205-214-and-221-and.html, https://github.com/blog/1938-git-client-vulnerability-announced, http://securitytracker.com/id?1031404, http://article.gmane.org/gmane.linux.kernel/1853266, http://mercurial.selenic.com/wiki/WhatsNew, http://support.apple.com/kb/HT204147, https://libgit2.org/security/, https://github.com/libgit2/libgit2/commit/928429c5c96a701bcbcafacb2421a82602b36915, https://github.com/advisories/GHSA-6vvc-c2m3-cjf3

    Affected packages

    Package

    Name: mercurial

    Purl: pkg:pypi/mercurial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.2.3

    Affected versions

    0.8.1

    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
    PYSEC-2020-217 | CVE-DB