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USN-3065-1: Libgcrypt vulnerability

18 August 2016

Libgcrypt incorrectly generated random numbers.

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Releases

Packages

Details

Felix Dörre and Vladimir Klebanov discovered that Libgcrypt incorrectly
handled mixing functions in the random number generator. An attacker able
to obtain 4640 bits from the RNG can trivially predict the next 160 bits of
output.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 16.04
Ubuntu 14.04
Ubuntu 12.04

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

References

Related notices

  • USN-3064-1: gpgv, gnupg-udeb, gnupg-curl, gnupg, gpgv-udeb