high
7.5
CWE
20
Advisory Published
CVE Published
Updated

CVE-2018-8779: Input Validation

First published: Thu Mar 29 2018(Updated: )

In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, the UNIXServer.open and UNIXSocket.open methods are not checked for null characters. It may be connected to an unintended socket.

Credit: CVE-2017-0898 CVE-2017-10784 CVE-2017-14033 CVE-2017-14064 CVE-2017-17405 CVE-2017-17742 CVE-2018-6914 CVE-2018-8777 CVE-2018-8778 CVE-2018-8779 CVE-2018-8780 cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Ruby-lang Ruby>=2.2.0<2.2.10
Ruby-lang Ruby>=2.3.0<2.3.7
Ruby-lang Ruby>=2.4.0<2.4.4
Ruby-lang Ruby>=2.5.0<2.5.1
Ruby-lang Ruby=2.6.0-preview1
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=17.10
Debian Debian Linux=7.0
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Apple macOS Mojave<10.14.1
10.14.1
Apple High Sierra
Apple Sierra
Apple macOS High Sierra<10.13.6
10.13.6
Apple El Capitan
redhat/ruby<2.2.10
2.2.10
redhat/ruby<2.3.7
2.3.7
redhat/ruby<2.4.4
2.4.4
redhat/ruby<2.5.1
2.5.1
debian/ruby1.8
debian/ruby1.9.1
debian/ruby2.1
debian/ruby2.5

Remedy

https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-2-10-released/

Remedy

https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-3-7-released/

Remedy

https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-4-4-released/

Remedy

https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-5-1-released/

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability identifier for this Ruby vulnerability?

    The vulnerability identifier for this Ruby vulnerability is CVE-2018-8779.

  • What is the severity level of CVE-2018-8779?

    CVE-2018-8779 has a severity level of high (7.5).

  • What is the affected version range of Ruby?

    The affected version range of Ruby is before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1.

  • How can I fix CVE-2018-8779 in Ruby?

    To fix CVE-2018-8779 in Ruby, you need to update to version 2.2.10, 2.3.7, 2.4.4, 2.5.1, or 2.6.0-preview1.

  • Where can I find more information about CVE-2018-8779?

    You can find more information about CVE-2018-8779 at the following references: [https://www.ruby-lang.org/en/news/2018/03/28/poisoned-nul-byte-unixsocket-cve-2018-8779/](https://www.ruby-lang.org/en/news/2018/03/28/poisoned-nul-byte-unixsocket-cve-2018-8779/), [https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1561957](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1561957), [https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=62991](https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=62991).

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