CVE-2013-2061
low
CVSS v3
—
CVSS v4 NEW
—
VIR risk
2.6
Description
The openvpn_decrypt function in crypto.c in OpenVPN 2.3.0 and earlier, when running in UDP mode, allows remote attackers to obtain sensitive information via a timing attack involving an HMAC comparison function that does not run in constant time and a padding oracle attack on the CBC mode cipher.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| 11.4 | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2.3.1-1 |
| sid | Fixed | 2.3.1-1 |
| forky | Fixed | 2.3.1-1 |
| bullseye | Fixed | 2.3.1-1 |
| bookworm | Fixed | 2.3.1-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| openvpn | openvpn | {"endIncluding":"2.3.0"} | |
| openvpn | openvpn | 1.2.0 | |
| openvpn | openvpn | 1.2.1 | |
| openvpn | openvpn | 1.3.0 | |
| openvpn | openvpn | 1.3.1 | |
| openvpn | openvpn | 1.3.2 | |
| openvpn | openvpn | 1.4.0 | |
| openvpn | openvpn | 1.4.1 | |
| openvpn | openvpn | 1.4.2 | |
| openvpn | openvpn | 1.4.3 | |
| openvpn | openvpn | 1.5.0 | |
| openvpn | openvpn | 1.6.0 | |
| openvpn | openvpn | 2.1.0 | |
| openvpn | openvpn | 2.2.0 | |
| openvpn | openvpn_access_server | 2.0.0 | |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105568.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105609.html
- http://lists.opensuse.org/opensuse-updates/2013-11/msg00012.html
- http://lists.opensuse.org/opensuse-updates/2013-11/msg00016.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:167
- http://www.openwall.com/lists/oss-security/2013/05/06/6
- https://bugs.gentoo.org/show_bug.cgi?id=468756
- https://bugzilla.redhat.com/show_bug.cgi?id=960192
- https://community.openvpn.net/openvpn/wiki/SecurityAnnouncement-f375aa67cc
- https://github.com/OpenVPN/openvpn/commit/11d21349a4e7e38a025849479b36ace7c2eec2ee
- https://security-tracker.debian.org/tracker/CVE-2013-2061
CWEs
CWE-200
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.