USN-3421-2: Libidn2 vulnerability
15 March 2021
Libidn2 could be made to crash if it received specially crafted input.
Releases
Packages
- libidn2-0 - Internationalized domain names (IDNA2008) library
Details
USN-3421-1 fixed a vulnerability in Libidn2. This update provides the
corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04
-
libidn2-0
-
0.10-3ubuntu0.1~esm1
Available with Ubuntu Pro
-
idn2
-
0.10-3ubuntu0.1~esm1
Available with Ubuntu Pro
Ubuntu 14.04
-
libidn2-0
-
0.9-1ubuntu0.1~esm1
Available with Ubuntu Pro
-
idn2
-
0.9-1ubuntu0.1~esm1
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-3434-1: libidn11, libidn, idn, libidn11-dev, libidn11-java
- USN-3434-2: libidn11, libidn
- USN-3421-1: idn2, libidn2-0