CVE-2013-2061

Name	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	707329

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	Debian Bugs
openvpn	source	squeeze	2.1.3-2+squeeze2
openvpn	source	wheezy	2.2.1-8+deb7u1
openvpn	source	(unstable)	2.3.1-1	low	707329

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