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.
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Red Hat Security Advisory 2020-1054-01 - Mailman is a program used to help manage e-mail discussion lists. Issues addressed include a cross site scripting vulnerability.
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Gentoo Linux Security Advisory 201904-10 - Multiple vulnerabilities have been found in Mailman, the worst of which could result in the arbitrary execution of code. Versions less than 2.1.29 are affected.
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