Medium severity6.1NVD Advisory· Published Apr 24, 2020· Updated Jun 17, 2026
CVE-2020-12137
CVE-2020-12137
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
33- cpe:2.3:a:opensuse:backports_sle:15.0:sp2:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*+ 1 more
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- GNU/GNU Mailmandescription
- osv-coords21 versionspkg:rpm/opensuse/mailman&distro=openSUSE%20Leap%2015.2pkg:rpm/suse/mailman&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/mailman&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/mailman&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/mailman&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/mailman&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/mailman&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/mailman&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/mailman&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/mailman&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/mailman&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/mailman&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/mailman&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/mailman&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/mailman&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/mailman&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/mailman&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/mailman&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/mailman&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/mailman&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/mailman&distro=SUSE%20Package%20Hub%2015%20SP2
< 2.1.34-lp152.7.3.1+ 20 more
- (no CPE)range: < 2.1.34-lp152.7.3.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.15-9.6.20.1
- (no CPE)range: < 2.1.15-9.6.20.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.17-3.20.1
- (no CPE)range: < 2.1.34-bp152.7.3.1
Patches
Vulnerability mechanics
References
11- bazaar.launchpad.net/~mailman-coders/mailman/2.1/view/head:/NEWSnvdThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00047.htmlnvdMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00063.htmlnvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2020/04/24/3nvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/05/msg00002.htmlnvdMailing ListThird Party Advisory
- usn.ubuntu.com/4348-1/nvdThird Party Advisory
- www.debian.org/security/2020/dsa-4664nvdThird Party Advisory
- www.openwall.com/lists/oss-security/2020/02/24/2nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2020/02/24/3nvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YCMGTTOXXCVM4O6CYZLTZDX6YLYORNF/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G4COSBBEMJYLV7WSW5QTUJUOFJFK47KK/nvd
News mentions
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