CVE-2018-12435 Information disclosure in n/a
Attackers with local or co-tenant access can recover ECDSA private keys via cache side-channel attacks in Botan.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-12435?
CVE-2018-12435 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
Botan 2.5.0 through 2.6.0 before 2.7.0 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP, related to dsa/dsa.cpp, ec_group/ec_group.cpp, and ecdsa/ecdsa.cpp. 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-2018-12435?
It affects 1 product.
Products include Botan Project Botan.
How do I fix CVE-2018-12435?
Upgrade to a fixed version.
Is CVE-2018-12435 being exploited?
There is no known exploitation of CVE-2018-12435 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as ALPINE-CVE-2018-12435, DEBIAN-CVE-2018-12435, GHSA-xwpq-mm7j-gvv6.