USN-3434-2: Libidn vulnerability
Publication date
23 October 2017
Overview
Libidn could be made to crash or run programs if it processed specially crafted input.
Releases
Packages
- libidn - implementation of IETF IDN specifications
Details
USN-3434-1 fixed a vulnerability in Libidn. This update
provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that Libidn incorrectly handled decoding certain digits.
A remote attacker could use this issue to cause Libidn to crash, resulting
in a denial of service, or possibly execute arbitrary code.
USN-3434-1 fixed a vulnerability in Libidn. This update
provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that Libidn incorrectly handled decoding certain digits.
A remote attacker could use this issue to cause Libidn to crash, resulting
in a denial of service, or possibly execute arbitrary code.
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 12.04 precise | libidn11 – 1.23-2ubuntu0.2 | ||
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