NULL pointer dereference in Openvpn
CVE-2017-7522
OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL character.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
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: 0.055 (92.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 92.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.055 · newest: 0.055 · 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)
Frequently asked questions
- What is CVE-2017-7522?
- CVE-2017-7522 is a medium-severity vulnerability in Openvpn, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2017-06-27.
- How severe is CVE-2017-7522?
- Medium severity. CVSS v3 base score is 6.5 out of 10.