critical
9.8
CWE
88
Advisory Published
CVE Published
Updated

CVE-2018-17456

First published: Fri Oct 05 2018(Updated: )

A flaw was found in git which allows an attacker to execute arbitrary code by crafting a malicious .gitmodules file in a project cloned with --recurse-submodules. References: <a href="https://bugzilla.novell.com/show_bug.cgi?id=1110949">https://bugzilla.novell.com/show_bug.cgi?id=1110949</a> <a href="https://groups.google.com/forum/#!topic/git-packagers/fNLXf6LQC08">https://groups.google.com/forum/#!topic/git-packagers/fNLXf6LQC08</a>

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
>=2.14.0<2.14.5
>=2.15.0<2.15.3
>=2.16.0<2.16.5
>=2.17.0<2.17.2
>=2.18.0<2.18.1
>=2.19.0<2.19.1
=3.3
=6.0
=6.7
=7.0
=7.3
=7.4
=7.5
=7.6
=7.0
=7.0
=7.6
=7.6
=7.6
=7.0
=14.04
=16.04
=18.04
=9.0
Git-scm Git>=2.14.0<2.14.5
Git-scm Git>=2.15.0<2.15.3
Git-scm Git>=2.16.0<2.16.5
Git-scm Git>=2.17.0<2.17.2
Git-scm Git>=2.18.0<2.18.1
Git-scm Git>=2.19.0<2.19.1
Redhat Ansible Tower=3.3
Redhat Enterprise Linux=6.0
Redhat Enterprise Linux=6.7
Redhat Enterprise Linux=7.0
Redhat Enterprise Linux=7.3
Redhat Enterprise Linux=7.4
Redhat Enterprise Linux=7.5
Redhat Enterprise Linux=7.6
Redhat Enterprise Linux Desktop=7.0
Redhat Enterprise Linux Server=7.0
Redhat Enterprise Linux Server Aus=7.6
Redhat Enterprise Linux Server Eus=7.6
Redhat Enterprise Linux Server Tus=7.6
Redhat Enterprise Linux Workstation=7.0
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Debian Debian Linux=9.0
redhat/git<2.14.5
2.14.5
redhat/git<2.15.3
2.15.3
redhat/git<2.16.5
2.16.5
redhat/git<2.17.2
2.17.2
redhat/git<2.18.1
2.18.1
redhat/git<2.19.1
2.19.1
debian/git
1:2.20.1-2+deb10u3
1:2.20.1-2+deb10u8
1:2.30.2-1+deb11u2
1:2.39.2-1.1
1:2.43.0-1
ubuntu/git<1:2.19.1-1
1:2.19.1-1
ubuntu/git<1:2.7.4-0ubuntu1.5
1:2.7.4-0ubuntu1.5
ubuntu/git<1:2.17.1-1ubuntu0.3
1:2.17.1-1ubuntu0.3
ubuntu/git<1:1.9.1-1ubuntu0.9
1:1.9.1-1ubuntu0.9

Remedy

https://github.com/git/git/commit/1a7fd1fb2998002da6e9ff2ee46e1bdd25ee8404

Remedy

https://github.com/git/git/commit/a124133e1e6ab5c7a9fef6d0e6bcb084e3455b46

Remedy

https://git.kernel.org/pub/scm/git/git.git/commit/?id=98afac7a7cefdca0d2c4917dd8066a59f7088265

Remedy

https://git.kernel.org/pub/scm/git/git.git/commit/?id=f6adec4e329ef0e25e14c63b735a5956dc67b8bc

Remedy

https://git.kernel.org/pub/scm/git/git.git/commit/?id=273c61496f88c6495b886acb1041fe57965151da

Remedy

https://git.kernel.org/pub/scm/git/git.git/commit/?id=a124133e1e6ab5c7a9fef6d0e6bcb084e3455b46

Remedy

https://git.kernel.org/pub/scm/git/git.git/commit/?id=1a7fd1fb2998002da6e9ff2ee46e1bdd25ee8404

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2018-17456?

    CVE-2018-17456 is a vulnerability in Git that allows remote code execution during processing of a recursive "git clone" of a superproject if a .gitmodules file has a URL field beginning with a '-' character.

  • What is the severity of CVE-2018-17456?

    The severity of CVE-2018-17456 is critical (9.8).

  • Which software versions are affected by CVE-2018-17456?

    Git versions before 2.14.5, 2.15.x before 2.15.3, 2.16.x before 2.16.5, 2.17.x before 2.17.2, 2.18.x before 2.18.1, and 2.19.x before 2.19.1 are affected by CVE-2018-17456.

  • How can I fix CVE-2018-17456?

    To fix CVE-2018-17456, you should update Git to version 2.14.5 or later.

  • Where can I find more information about CVE-2018-17456?

    You can find more information about CVE-2018-17456 at the following references: [http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00003.html](http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00003.html), [http://packetstormsecurity.com/files/152173/Sourcetree-Git-Arbitrary-Code-Execution-URL-Handling.html](http://packetstormsecurity.com/files/152173/Sourcetree-Git-Arbitrary-Code-Execution-URL-Handling.html), [http://www.securityfocus.com/bid/105523](http://www.securityfocus.com/bid/105523).

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