CVE-2018-12438 Information disclosure in n/a
Attackers with local or co-located VM access can recover ECDSA private keys via memory-cache side-channel attacks in the Java sunec library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-12438?
CVE-2018-12438 is a medium-severity vulnerability in n/a, 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
The Elliptic Curve Cryptography library (aka sunec or libsunec) 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.
Which versions are affected by CVE-2018-12438?
It affects 1 product.
Products include Libsunec Project Libsunec.
How do I fix CVE-2018-12438?
No fix has been published for CVE-2018-12438 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-12438 being exploited?
There is no known exploitation of CVE-2018-12438 in the wild and no public exploit code.
Sources
Also known as GHSA-6xrq-423r-vrcg.