CVE-2017-7479
medium
CVSS v3
6.5
CVSS v2
4.0
VIR risk
6.5
Description
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.
Predictions
Exploit likelihood
75%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2017-7479
Vendor advisory: secalert@redhat.com — https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits
Vendor advisory: arch — https://security.archlinux.org/ASA-201705-16
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 2.4.2-1 | |
| debian | bookworm | fixed | 2.4.0-5 |
| debian | bullseye | fixed | 2.4.0-5 |
| debian | forky | fixed | 2.4.0-5 |
| debian | sid | fixed | 2.4.0-5 |
| debian | trixie | fixed | 2.4.0-5 |
References
- https://security.archlinux.org/ASA-201705-16
- http://www.debian.org/security/2017/dsa-3900
- http://www.securityfocus.com/bid/98443
- http://www.securitytracker.com/id/1038473
- https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits
- https://security-tracker.debian.org/tracker/CVE-2017-7479
CWEs
CWE-617
Verify integrity in audit chain (admin only). AS-IS.