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CVE-2020-12137

MEDIUM
6.1
CVSS Score
Published: April 24, 2020 at 12:37 PM UTC
Updated: June 17, 2026 at 02:51 AM UTC
6 products affected across 5 vendorsDebian LinuxFedoraUbuntu Linux

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Severity
MEDIUM6.1
Exploit prediction
EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ubuntu Linux· Canonicalrubygems
95%
16.0418.04
Debian Linux· Debiandrupal
95%
10.08.09.0
Fedora· Fedora Projectrpm
95%
3132
Mailman· Gnu
95%
2.0 ≤ v < 2.1.30
Affected range stops below 2.1.30, so it looks safe — our inference, not a vendor statement
Backports Sle· openSUSE
95%
15.0 sp2
Leap· openSUSEdrupal
95%
15.2

References (11)

x_refsource_MISCThird Party Advisory
Source: [email protected]
http://bazaar.launchpad.net/~mailman-coders/mailman/2.1/view/head:/NEWS
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00047.html
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00063.html
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2020/04/24/3
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2020/05/msg00002.html
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YCMGTTOXXCVM4O6CYZLTZDX6YLYORNF/
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G4COSBBEMJYLV7WSW5QTUJUOFJFK47KK/
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/4348-1/

CVSS

6.1MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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