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Ubuntu: USN-3339-1 (CVE-2016-6329): OpenVPN vulnerabilities

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Ubuntu: USN-3339-1 (CVE-2016-6329): OpenVPN vulnerabilities

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
01/31/2017
Created
07/25/2018
Added
06/23/2017
Modified
09/12/2020

Description

OpenVPN, when using a 64-bit block cipher, makes it easier for remote attackers to obtain cleartext data via a birthday attack against a long-duration encrypted session, as demonstrated by an HTTP-over-OpenVPN session using Blowfish in CBC mode, aka a "Sweet32" attack.

Solution(s)

  • ubuntu-upgrade-openvpn

References

  • USN-3284-1
  • USN-3339-1
  • USN-3339-2
  • CVE-2016-6329

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