| Name | CVE-2017-7520 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-999-1, DSA-3900-1 |
| Debian Bugs | 865480 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| openvpn (PTS) | jessie, jessie (lts) | 2.3.4-5+deb8u3 | fixed |
| stretch (security), stretch (lts), stretch | 2.4.0-6+deb9u4 | fixed |
| buster | 2.4.7-1+deb10u1 | fixed |
| bullseye | 2.5.1-3 | fixed |
| bookworm (security), bookworm | 2.6.3-1+deb12u2 | fixed |
| sid, trixie | 2.6.12-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
Fixed by (master): https://github.com/OpenVPN/openvpn/commit/7718c8984f04b507c1885f363970e2124e3c6c77
Fixed by (2.4.x): https://github.com/OpenVPN/openvpn/commit/043fe327878eba75efa13794c9845f85c3c629f2
Fixed by (2.3.x): https://github.com/OpenVPN/openvpn/commit/f38a4a105979b87ebebe9be1c3d323116d3fb924
https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243
https://www.openwall.com/lists/oss-security/2017/06/21/6