Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS : libgcrypt11, libgcrypt20 vulnerability (USN-3065-1)

Ubuntu Security Notice (C) 2016 Canonical, Inc. / NASL script (C) 2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related
patches.

Description :

Felix Dorre and Vladimir Klebanov discovered that Libgcrypt
incorrectly handled mixing functions in the random number generator.
An attacker able to obtain 4640 bits from the RNG can trivially
predict the next 160 bits of output.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected libgcrypt11 and / or libgcrypt20 packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N)
CVSS Temporal Score : 4.1
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 93046 ()

Bugtraq ID:

CVE ID: CVE-2016-6313

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