CVE-2021-42097

Publication date 21 October 2021

Last updated 24 July 2024

Ubuntu priority

High

Why this priority?

Cvss 3 Severity Score

8.0 · High

Score breakdown

GNU Mailman before 2.1.35 may allow remote Privilege Escalation. A csrf_token value is not specific to a single user account. An attacker can obtain a value within the context of an unprivileged user account, and then use that value in a CSRF attack against an admin (e.g., for account takeover).

Status

Package Ubuntu Release Status
mailman 20.04 LTS focal
Fixed 1:2.1.29-1ubuntu3.1
18.04 LTS bionic
Fixed 1:2.1.26-1ubuntu0.4
16.04 LTS xenial

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
mailman

Severity score breakdown

Parameter Value
Base score 8.0 · High
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H