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CVE-2020-12137

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-5121-2
Posted Nov 2, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5121-2 - USN-5009-1 fixed vulnerabilities in Mailman. This update provides the corresponding updates for Ubuntu 20.04 LTS. It was discovered that Mailman allows arbitrary content injection. An attacker could use this to inject malicious content. It was discovered that Mailman improperly sanitize the MIME content. An attacker could obtain sensitive information by sending a special type of attachment.

tags | advisory, arbitrary, vulnerability
systems | linux, ubuntu
advisories | CVE-2020-12108, CVE-2020-12137, CVE-2021-42096, CVE-2021-42097
MD5 | 3a567963a1873ad7347c1ff42ff0b087
Red Hat Security Advisory 2020-4667-01
Posted Nov 4, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4667-01 - Mailman is a program used to help manage e-mail discussion lists. Issues addressed include a cross site scripting vulnerability.

tags | advisory, xss
systems | linux, redhat
advisories | CVE-2020-12137
MD5 | 9f7ba7993d0d23f2eae9a21224901884
Ubuntu Security Notice USN-4348-1
Posted Apr 29, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4348-1 - It was discovered that Mailman incorrectly handled certain inputs. An attacker could possibly use this to issue execute arbitrary scripts or HTML. It was discovered that Mailman incorrectly handled certain inputs. An attacker could possibly use this issue to display arbitrary text on a web page. It was discovered that Mailman incorrectly handled certain files. An attacker could possibly use this issue to execute arbitrary code. Various other issues were also addressed.

tags | advisory, web, arbitrary
systems | linux, ubuntu
advisories | CVE-2018-0618, CVE-2018-13796, CVE-2020-12137
MD5 | 6155bbb34dfd212c260c78c45a346eb6
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