Vulnerability in Openvpn
CVE-2017-7479
OpenVPN versions before 2.3.15 and before 2.4.2 are vulnerable to reachable assertion when packet-ID counter rolls over resulting into Denial of Service of server by authenticated attacker.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.019 (78.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: -0.000
Affected products
- Openvpn — versions 2.4.0, 2.4.1
- Openvpn Technologies, Inc — versions < 2.4.2, < 2.3.15
Weakness classification (CWE)
Public proof-of-concept exploits
References
- community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits (Vendor Advisory)
- www.securitytracker.com/id/1038473 (vdb-entry)
- www.debian.org/security/2017/dsa-3900 (vendor-advisory)
- www.securityfocus.com/bid/98443 (vdb-entry)
Frequently asked questions
- What is CVE-2017-7479?
- CVE-2017-7479 is a medium-severity vulnerability in Openvpn, classified under Reachable Assertion. CVSS score: 6.5/10. Published 2017-05-15.
- How severe is CVE-2017-7479?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2017-7479 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.