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Ubuntu 12.04 ESM USN-3347-2 Moderate: Libgcrypt Side Channel Attack

ubuntu
Calendar Grey July 17, 2017
Dist Ubuntu Esm H88
Multiple vulnerabilities in Libgcrypt addressed for Ubuntu 12.04 ESM. Discover ways to enhance and fortify your system!
Several security issues were fixed in Libgcrypt.

Summary

Several security issues were fixed in Libgcrypt.

Software Description:

- libgcrypt11: LGPL Crypto library

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)

Topics%20covered

Topics Covered

security advisory moderate update ubuntu libgcrypt side channel

Update Instructions

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

Ubuntu 12.04 ESM:
  libgcrypt11                     1.5.0-3ubuntu0.7

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

References

  https://ubuntu.com/security/notices/USN-3347-2

  https://ubuntu.com/security/notices/USN-3347-1

  CVE-2017-7526

July 17, 2017

Topics%20covered

Topics Covered

security advisory moderate update ubuntu libgcrypt side channel

Package Information

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