CVE-2013-2061
low
CVSS v3
—
CVSS v2
2.6
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
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2013-2061
Vendor advisory: secalert@redhat.com — https://github.com/OpenVPN/openvpn/commit/11d21349a4e7e38a025849479b36ace7c2eec2ee
Vendor advisory: secalert@redhat.com — http://lists.opensuse.org/opensuse-updates/2013-11/msg00012.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| suse | 11.4 | affected | |
| debian | bookworm | fixed | 2.3.1-1 |
| debian | bullseye | fixed | 2.3.1-1 |
| debian | forky | fixed | 2.3.1-1 |
| debian | sid | fixed | 2.3.1-1 |
| debian | trixie | 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
Verify integrity in audit chain (admin only). AS-IS.