CVE-2013-2061 Information disclosure in n/a

Low 2.6 Published Updated

Remote attackers can obtain sensitive information via timing and padding oracle attacks in OpenVPN UDP mode.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2013-2061?

CVE-2013-2061 is a low-severity vulnerability in Opensuse Opensuse, published on 15 Nov 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-200

Which versions are affected by CVE-2013-2061?

It affects 3 products.

Products include Opensuse Opensuse, Openvpn Openvpn, Openvpn Openvpn Access Server.

How do I fix CVE-2013-2061?

Upgrade to a fixed version.

Is CVE-2013-2061 being exploited?

There is no known exploitation of CVE-2013-2061 in the wild and no public exploit code.

All Opensuse Opensuse vulnerabilities

Sources

Also known as DEBIAN-CVE-2013-2061, GHSA-j3mr-328w-64j3.

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