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Ubuntu 20.04 ESM: USN-4782-1 Urgent: Libgcrypt Vulnerability Exploit

ubuntu
Calendar Grey June 19, 2018
Dist Ubuntu Esm H88
A security flaw in Libgcrypt for Ubuntu allows exposure of private information via a side-channel attack, prompting immediate patching actions.
Libgcrypt could be made to expose sensitive information.

Summary

Libgcrypt could be made to expose sensitive information.

Software Description:

- libgcrypt11: LGPL Crypto library

Details:

USN-3689-1 fixed a vulnerability in Libgcrypt. This update provides

the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

 Keegan Ryan discovered that Libgcrypt was susceptible to a side- channel attack. A local attacker could possibly use this attack to

 recover ECDSA private keys.

Topics%20covered

Topics Covered

security advisory critical ubuntu sensitive information side-channel attack libgcrypt

Update Instructions

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

Ubuntu 12.04 ESM:
  libgcrypt11                     1.5.0-3ubuntu0.8

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

References

  https://ubuntu.com/security/notices/USN-3689-2

  https://ubuntu.com/security/notices/USN-3689-1

  CVE-2018-0495

Severity
critical
Lowest
Low
Medium
High
Critical

June 19, 2018

Topics%20covered

Topics Covered

security advisory critical ubuntu sensitive information side-channel attack libgcrypt

Package Information

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