Out-of-bounds Read in Openvpn
CVE-2017-7520
OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service and/or possibly sensitive memory leak triggered by man-in-the-middle attacker.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.034 (88.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.034 · newest: 0.034 · change: 0.000
Affected products
- Openvpn — versions 2.4.0, 2.4.1, 2.4.2
- Openvpn Technologies, Inc — versions before 2.3.17, before 2.4.3
Weakness classification (CWE)
References
- community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243 (Vendor Advisory)
- www.securitytracker.com/id/1038768 (vdb-entry)
- www.securityfocus.com/bid/99230 (VDB Entry, Third Party Advisory, vdb-entry)
- www.debian.org/security/2017/dsa-3900 (vendor-advisory)
Frequently asked questions
- What is CVE-2017-7520?
- CVE-2017-7520 is a high-severity vulnerability in Openvpn, classified under Information Disclosure. CVSS score: 7.4/10. Published 2017-06-27.
- How severe is CVE-2017-7520?
- High severity. CVSS v3 base score is 7.4 out of 10.