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Ubuntu Security Notice USN-4722-1
February 04, 2021

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

- Ubuntu 20.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

ReadyMedia (MiniDLNA) could be made to crash if it received specially crafted
input.

Software Description:
- minidlna: lightweight DLNA/UPnP-AV server targeted at embedded systems

Details:

It was discovered that ReadyMedia (MiniDLNA) allowed subscription requests with
a delivery URL on a different network segment than the fully qualified event-
subscription URL. An attacker could use this to hijack smart devices and cause
denial of service attacks. (CVE-2020-12695)

It was discovered that ReadyMedia (MiniDLNA) allowed remote code execution.
A remote attacker could send a malicious UPnP HTTP request to the service
using HTTP chunked encoding and cause a denial of service.
(CVE-2020-28926)

Update instructions:

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

Ubuntu 20.10:
  minidlna                        1.2.1+dfsg-2ubuntu0.1

Ubuntu 20.04 LTS:
  minidlna                        1.2.1+dfsg-1ubuntu0.20.04.1

Ubuntu 18.04 LTS:
  minidlna                        1.2.1+dfsg-1ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  minidlna                        1.1.5+dfsg-2ubuntu0.1

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

References:
  https://usn.ubuntu.com/4722-1
  CVE-2020-12695, CVE-2020-28926

Package Information:
  https://launchpad.net/ubuntu/+source/minidlna/1.2.1+dfsg-2ubuntu0.1
  https://launchpad.net/ubuntu/+source/minidlna/1.2.1+dfsg-1ubuntu0.20.04.1
  https://launchpad.net/ubuntu/+source/minidlna/1.2.1+dfsg-1ubuntu0.18.04.1
  https://launchpad.net/ubuntu/+source/minidlna/1.1.5+dfsg-2ubuntu0.1