CVE-2016-6329
5.9
MEDIUM
CVSS 3.1
EPSS 5.5%
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.
How to fix CVE-2016-6329
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- Debian/openvpn—no fix listed
Is CVE-2016-6329 being exploited?
Moderate — EPSS is 5.5%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |