CVE-2018-12436 Information disclosure in n/a
Attackers with local or adjacent VM access can recover ECDSA private keys via cache side-channel attacks in wolfSSL.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-12436?
CVE-2018-12436 is a medium-severity vulnerability in Wolfssl Wolfssl, published on 15 Jun 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
wolfcrypt/src/ecc.c in wolfSSL before 3.15.1.patch allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
Weakness: CWE-200
Which versions are affected by CVE-2018-12436?
It affects 1 product.
Products include Wolfssl Wolfssl.
How do I fix CVE-2018-12436?
Upgrade to a fixed version.
Is CVE-2018-12436 being exploited?
There is no known exploitation of CVE-2018-12436 in the wild and no public exploit code.
Other vulnerabilities in Wolfssl Wolfssl
Sources
Also known as DEBIAN-CVE-2018-12436, GHSA-383q-q8wg-6p5v, UBUNTU-CVE-2018-12436.