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Ubuntu 15.10: USN-2896-1 Low Severity: Libgcrypt Info Exposure

ubuntu
Calendar Grey February 15, 2016
Scroller Ubuntu
A security flaw in Libgcrypt on Debian reveals potential leakage of confidential data; guidance for updates provided.
Libgcrypt could be made to expose sensitive information.

Summary

Libgcrypt could be made to expose sensitive information.

Software Description:

- libgcrypt20: LGPL Crypto library

- libgcrypt11: LGPL Crypto library

Details:

Daniel Genkin, Lev Pachmanov, Itamar Pipman and Eran Tromer discovered

that Libgcrypt was susceptible to an attack via physical side channels. A

local attacker could use this attack to possibly recover private keys.

Topics%20covered

Topics Covered

security advisory Ubuntu low severity information exposure attack vector Libgcrypt crypto issue

Update Instructions

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

Ubuntu 15.10:
  libgcrypt20                     1.6.3-2ubuntu1.1

Ubuntu 14.04 LTS:
  libgcrypt11                     1.5.3-2ubuntu4.3

Ubuntu 12.04 LTS:
  libgcrypt11                     1.5.0-3ubuntu0.5

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

References

https://ubuntu.com/security/notices/USN-2896-1

CVE-2015-7511

Severity
low
Lowest
Low
Medium
High
Critical

February 15, 2016

Topics%20covered

Topics Covered

security advisory Ubuntu low severity information exposure attack vector Libgcrypt crypto issue

Package Information

https://launchpad.net/ubuntu/+source/libgcrypt20/1.6.3-2ubuntu1.1
https://launchpad.net/ubuntu/+source/libgcrypt11/1.5.3-2ubuntu4.3
https://launchpad.net/ubuntu/+source/libgcrypt11/1.5.0-3ubuntu0.5

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