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CVE-2013-2061

Published: Nov 15, 2013

Modified: Aug 6, 2024

PUBLISHED

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.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

FEDORA-2013-7552

vendor-advisory

x_refsource_FEDORA

FEDORA-2013-7531

vendor-advisory

x_refsource_FEDORA

openSUSE-SU-2013:1645

vendor-advisory

x_refsource_SUSE

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

x_refsource_CONFIRM

[oss-security] 20130506 Re: CVE request: OpenVPN use of non-constant-time memcmp in HMAC comparison in openvpn_decrypt

mailing-list

x_refsource_MLIST

vendor-advisory

x_refsource_MANDRIVA

openSUSE-SU-2013:1649

vendor-advisory

x_refsource_SUSE

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

x_refsource_CONFIRM

https://github.com/OpenVPN/openvpn/commit/11d21349a4e7e38a025849479b36ace7c2eec2ee

x_refsource_CONFIRM

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

x_refsource_CONFIRM

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