A MoinMoin security update has been released for Ubuntu Linux 16.04 LTS and 18.04 LTS.

USN-4629-1: MoinMoin vulnerabilities

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Ubuntu Security Notice USN-4629-1
November 11, 2020

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

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in MoinMoin.

Software Description:
- moin: Collaborative hypertext environment

Details:

Michael Chapman discovered that MoinMoin incorrectly handled certain cache actions.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2020-25074)

Catarina Leite discovered that MoinMoin incorrectly handled certain SVG files.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2020-15275)

Update instructions:

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

Ubuntu 18.04 LTS:
python-moinmoin 1.9.9-1ubuntu1.2

Ubuntu 16.04 LTS:
python-moinmoin 1.9.8-1ubuntu1.16.04.3

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

References:
  https://usn.ubuntu.com/4629-1
CVE-2020-15275, CVE-2020-25074

Package Information:
  https://launchpad.net/ubuntu/+source/moin/1.9.9-1ubuntu1.2
  https://launchpad.net/ubuntu/+source/moin/1.9.8-1ubuntu1.16.04.3