medium
6.1
CWE
79
Advisory Published
Updated

CVE-2020-12137: XSS

First published: Fri Apr 24 2020(Updated: )

GNU Mailman 2.x before 2.1.30 uses the .obj extension for scrubbed application/octet-stream MIME parts. This behavior may contribute to XSS attacks against list-archive visitors, because an HTTP reply from an archive web server may lack a MIME type, and a web browser may perform MIME sniffing, conclude that the MIME type should have been text/html, and execute JavaScript code.

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

Affected SoftwareAffected VersionHow to fix
ubuntu/mailman<1:2.1.29-1ubuntu3.1
1:2.1.29-1ubuntu3.1
ubuntu/mailman<1:2.1.26-1ubuntu0.1
1:2.1.26-1ubuntu0.1
ubuntu/mailman<1:2.1.20-1ubuntu0.4
1:2.1.20-1ubuntu0.4
>=2.0<2.1.30
=9.0
=10.0
=31
=32
=8.0
=16.04
=18.04
=15.0-sp2
=15.2
GNU Mailman>=2.0<2.1.30
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Fedoraproject Fedora=31
Fedoraproject Fedora=32
Debian Debian Linux=8.0
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
openSUSE Backports SLE=15.0-sp2
openSUSE Leap=15.2
debian/mailman
1:2.1.29-1+deb10u5
1:2.1.29-1+deb10u2

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2020-12137?

    CVE-2020-12137 is a vulnerability in GNU Mailman 2.x before version 2.1.30 that allows for XSS attacks against list-archive visitors.

  • How does CVE-2020-12137 affect GNU Mailman?

    CVE-2020-12137 affects GNU Mailman 2.x versions before 2.1.30, allowing for potential XSS attacks against list-archive visitors.

  • What is the severity of CVE-2020-12137?

    The severity of CVE-2020-12137 is medium, with a severity value of 6.1.

  • How can I fix CVE-2020-12137?

    To fix CVE-2020-12137, you should update GNU Mailman to version 2.1.30 or later.

  • Where can I find more information about CVE-2020-12137?

    You can find more information about CVE-2020-12137 in the links provided: [http://bazaar.launchpad.net/~mailman-coders/mailman/2.1/view/head:/NEWS](http://bazaar.launchpad.net/~mailman-coders/mailman/2.1/view/head:/NEWS) and [https://www.openwall.com/lists/oss-security/2020/02/24/2](https://www.openwall.com/lists/oss-security/2020/02/24/2).

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203