CVE-2013-2061

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.

References

https://community.openvpn.net/openvpn/wiki/SecurityAnnouncement-f375aa67cc

https://bugzilla.redhat.com/show_bug.cgi?id=960192

https://bugs.gentoo.org/show_bug.cgi?id=468756

http://www.openwall.com/lists/oss-security/2013/05/06/6

http://www.mandriva.com/security/advisories?name=MDVSA-2013:167

http://lists.opensuse.org/opensuse-updates/2013-11/msg00016.html

http://lists.opensuse.org/opensuse-updates/2013-11/msg00012.html

http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105609.html

http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105568.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3