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Ubuntu 12.04 ESM USN-3733-2 High: GnuPG Exposes Sensitive Data

ubuntu
Calendar Grey August 15, 2018
Dist Ubuntu Esm H88
Recent GnuPG flaw may compromise private data on Ubuntu machines. Take action to secure your system immediately.
GnuPG could be made to expose sensitive information.

Summary

GnuPG could be made to expose sensitive information.

Software Description:

- gnupg: GNU privacy guard - a free PGP replacement

Details:

USN-3733-1 fixed a vulnerability in GnuPG. 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 GnuPG is vulnerable to a cache side- channel attack. A local attacker could use this attack to recover RSA

 private keys.

Topics%20covered

Topics Covered

security advisory high severity gnupg update instructions ubuntu sensitive information cache attack

Update Instructions

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

Ubuntu 12.04 ESM:
  gnupg                           1.4.11-3ubuntu2.12
  gnupg-curl                      1.4.11-3ubuntu2.12
  gpgv                            1.4.11-3ubuntu2.12

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

References

  https://ubuntu.com/security/notices/USN-3733-2

  https://ubuntu.com/security/notices/USN-3733-1

  CVE-2017-7526

Severity
important
Lowest
Low
Medium
High
Critical

August 15, 2018

Topics%20covered

Topics Covered

security advisory high severity gnupg update instructions ubuntu sensitive information cache attack

Package Information

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