CVE-2020-28926: Buffer Overflow

Published Nov 30, 2020
·
Updated

ReadyMedia (aka MiniDLNA) before versions 1.3.0 allows remote code execution. Sending a malicious UPnP HTTP request to the miniDLNA service using HTTP chunked encoding can lead to a signedness bug resulting in a buffer overflow in calls to memcpy/memmove.

Affected Software

23 affected componentsFixes available
debian/minidlna<=1.2.1+dfsg-1, <=1.2.1+dfsg-2
1.2.1+dfsg-2+deb10u11.2.1+dfsg-3
ubuntu/minidlna<1.2.1+dfsg-1ubuntu0.18.04.1
1.2.1+dfsg-1ubuntu0.18.04.1
ubuntu/minidlna<1.2.1+dfsg-1ubuntu0.20.04.1
1.2.1+dfsg-1ubuntu0.20.04.1
ubuntu/minidlna<1.2.1+dfsg-2ubuntu0.1
1.2.1+dfsg-2ubuntu0.1
ubuntu/minidlna<1.3.0
1.3.0
ubuntu/minidlna<1.1.5+dfsg-2ubuntu0.1
1.1.5+dfsg-2ubuntu0.1
debian/minidlna
1.3.0+dfsg-2+deb11u21.3.0+dfsg-2.2+deb12u11.3.3+dfsg-1.1
Readymedia Project Readymedia<1.3.0
Debian Debian Linux=9.0
Debian Debian Linux=10.0
alpine/minidlna<1.2.1-r2
1.2.1-r2
alpine/minidlna<1.2.1-r2
1.2.1-r2
alpine/minidlna<1.2.1-r2
1.2.1-r2
alpine/minidlna<1.2.1-r2
1.2.1-r2
alpine/minidlna<1.2.1-r2
1.2.1-r2
alpine/minidlna<1.2.1-r2
1.2.1-r2
alpine/minidlna<1.2.1-r2
1.2.1-r2
alpine/minidlna<1.2.1-r2
1.2.1-r2
alpine/minidlna<1.2.1-r2
1.2.1-r2
alpine/minidlna<1.2.1-r2
1.2.1-r2
alpine/minidlna<1.2.1-r2
1.2.1-r2
alpine/minidlna<1.2.1-r2
1.2.1-r2
alpine/minidlna<1.2.1-r2
1.2.1-r2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/minidlna to a version that resolves this vulnerability.

    Fixed in 1.2.1+dfsg-2+deb10u1Fixed in 1.2.1+dfsg-3
  2. Upgrade

    Upgrade ubuntu/minidlna to a version that resolves this vulnerability.

    Fixed in 1.2.1+dfsg-1ubuntu0.18.04.1
  3. Upgrade

    Upgrade ubuntu/minidlna to a version that resolves this vulnerability.

    Fixed in 1.2.1+dfsg-1ubuntu0.20.04.1
  4. Upgrade

    Upgrade ubuntu/minidlna to a version that resolves this vulnerability.

    Fixed in 1.2.1+dfsg-2ubuntu0.1
  5. Upgrade

    Upgrade ubuntu/minidlna to a version that resolves this vulnerability.

    Fixed in 1.3.0
  6. Upgrade

    Upgrade ubuntu/minidlna to a version that resolves this vulnerability.

    Fixed in 1.1.5+dfsg-2ubuntu0.1
  7. Upgrade

    Upgrade debian/minidlna to a version that resolves this vulnerability.

    Fixed in 1.3.0+dfsg-2+deb11u2Fixed in 1.3.0+dfsg-2.2+deb12u1Fixed in 1.3.3+dfsg-1.1
  8. Upgrade

    Upgrade alpine/minidlna to a version that resolves this vulnerability.

    Fixed in 1.2.1-r2
  9. Upgrade

    Upgrade ReadyMedia (aka MiniDLNA) to a version that resolves this vulnerability.

    Fixed in 1.3.0

Event History

Nov 30, 2020
CVE Published
via Ubuntu·12:00 AM
CVE Published
via MITRE·05:09 PM
Data Sourced
via MITRE·05:09 PM
Description
Data Sourced
via NVD·06:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·06:15 PM
DescriptionSeverityAffected Software
Mar 3, 2021
Exploit Published
via GitHub·09:06 PM

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2020-28926?

The severity of CVE-2020-28926 is critical with a CVSS score of 9.8.

2

How can remote code execution be performed in CVE-2020-28926?

Remote code execution can be performed in CVE-2020-28926 by sending a malicious UPnP HTTP request to the miniDLNA service using HTTP chunked encoding.

3

What leads to a buffer overflow in CVE-2020-28926?

A signedness bug resulting in a buffer overflow in calls to memcpy/memmove leads to the vulnerability in CVE-2020-28926.

4

How can I fix CVE-2020-28926?

To fix CVE-2020-28926, make sure you are using ReadyMedia (aka MiniDLNA) version 1.3.0 or higher.

Company

Resources

Contact

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