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Ubuntu Security Notice USN-5151-1

Ubuntu Security Notice USN-5151-1
Posted Nov 18, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5151-1 - It was discovered that Mailman incorrectly handled certain URL. An attacker could possibly use this issue to execute arbitrary code. It was discovered that Mailman incorrectly handled certain inputs. An attacker could possibly use this issue to expose sensitive information.

tags | advisory, arbitrary
systems | linux, ubuntu
advisories | CVE-2021-43331, CVE-2021-43332
SHA-256 | 674311448533be90e7da727c09a0402321b51321d7a73d147f446c237b7c566a

Ubuntu Security Notice USN-5151-1

Change Mirror Download
=========================================================================
Ubuntu Security Notice USN-5151-1
November 18, 2021

mailman vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM

Summary:

Several security issues were fixed in Mailman.

Software Description:
- mailman: Web-based mailing list manager

Details:

It was discovered that Mailman incorrectly handled certain URL.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2021-43331)

It was discovered that Mailman incorrectly handled certain inputs.
An attacker could possibly use this issue to expose sensitive information.
(CVE-2021-43332)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS:
mailman 1:2.1.26-1ubuntu0.5

Ubuntu 16.04 ESM:
mailman 1:2.1.20-1ubuntu0.6+esm2

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-5151-1
CVE-2021-43331, CVE-2021-43332, https://launchpad.net/bugs/1949401, https://launchpad.net/mailman/+bug/1949403

Package Information:
https://launchpad.net/ubuntu/+source/mailman/1:2.1.26-1ubuntu0.5
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