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USN-3347-2: Libgcrypt vulnerability

17 July 2017

Several security issues were fixed in Libgcrypt.

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Releases

Packages

Details

USN-3347-1 fixed a vulnerability in Libgcrypt. This update provides the
corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Daniel J. Bernstein, Joachim Breitner, Daniel Genkin, Leon Groot
Bruinderink, Nadia Heninger, Tanja Lange, Christine van Vredendaal, and
Yuval Yarom discovered that Libgcrypt was susceptible to an attack via
side channels. A local attacker could use this attack to recover RSA
private keys. (CVE-2017-7526)

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 12.04

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

References

Related notices

  • USN-3733-1: gnupg-udeb, gpgv-udeb, gnupg-curl, gnupg, gpgv
  • USN-3733-2: gpgv, gnupg-curl, gnupg
  • USN-3347-1: libgcrypt20-udeb, libgcrypt20-dev, libgcrypt20-doc, libgcrypt11, libgcrypt11-doc, libgcrypt11-udeb, libgcrypt20, libgcrypt11-dev