| Name | CVE-2017-7478 |
| Description | OpenVPN version 2.3.12 and newer is vulnerable to unauthenticated Denial of Service of server via received large control packet. Note that this issue is fixed in 2.3.15 and 2.4.2. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
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.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| openvpn | source | wheezy | (not affected) | | | |
| openvpn | source | jessie | (not affected) | | | |
| openvpn | source | (unstable) | 2.4.0-5 | | | |
Notes
[jessie] - openvpn <not-affected> (Vulnerable code introduced later)
[wheezy] - openvpn <not-affected> (Vulnerable code introduced later)
https://github.com/OpenVPN/openvpn/commit/5774cf4c25e1d8bf4e544702db8f157f111c9d93 (master)
https://github.com/OpenVPN/openvpn/commit/66b99a0753352c5cc43e11e39835b6423112df98 (2.4.x)
https://github.com/OpenVPN/openvpn/commit/feb35ee5cac605edddd6e9dc62941e2c53f96fb3 (2.3.x)
Introduced in: https://github.com/OpenVPN/openvpn/commit/3c1b19e04745177185decd14da82c71458442b82 (2.4.0)
Introduced in (backported to 2.3.12): https://github.com/OpenVPN/openvpn/commit/358f513c008bf01fadb82759ac75ffb8613fc785
https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits