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Sicherheit: Ausführen beliebiger Kommandos in PyXDG
Aktuelle Meldungen Distributionen
Name: Ausführen beliebiger Kommandos in PyXDG
ID: USN-4700-1
Distribution: Ubuntu
Plattformen: Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 14.04 ESM
Datum: Di, 19. Januar 2021, 18:46
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12761
Applikationen: PyXDG

Originalnachricht

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==========================================================================
Ubuntu Security Notice USN-4700-1
January 19, 2021

pyxdg vulnerability
==========================================================================

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

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 ESM

Summary:

PyXDG could be made to run programs as your login if it received specially
crafted input.

Software Description:
- pyxdg: python library to access freedesktop.org standards

Details:

Alexandre D'Hondt discovered that PyXDG did not properly sanitize input.
An attacker could exploit this with a crafted .menu file to execute
arbitrary code.

Update instructions:

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

Ubuntu 18.04 LTS:
python-xdg 0.25-4ubuntu1.1
python3-xdg 0.25-4ubuntu1.1

Ubuntu 16.04 LTS:
python-xdg 0.25-4ubuntu0.16.04.1
python3-xdg 0.25-4ubuntu0.16.04.1

Ubuntu 14.04 ESM:
python-xdg 0.25-4ubuntu0.14.04.1~esm1
python3-xdg 0.25-4ubuntu0.14.04.1~esm1

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

References:
https://usn.ubuntu.com/4700-1
CVE-2019-12761

Package Information:
https://launchpad.net/ubuntu/+source/pyxdg/0.25-4ubuntu1.1
https://launchpad.net/ubuntu/+source/pyxdg/0.25-4ubuntu0.16.04.1



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