CVE-2022-42961 Information disclosure in n/a
Attackers can recover private ECC keys by exploiting Rowhammer-induced signature faults during TLS signing operations in wolfSSL.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-42961?
CVE-2022-42961 is a medium-severity vulnerability in Wolfssl Wolfssl, published on 15 Oct 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in wolfSSL before 5.5.0. A fault injection attack on RAM via Rowhammer leads to ECDSA key disclosure. Users performing signing operations with private ECC keys, such as in server-side TLS connections, might leak faulty ECC signatures. These signatures can be processed via an advanced technique for ECDSA key recovery. (In 5.5.0 and later, WOLFSSL_CHECK_SIG_FAULTS can be used to address the vulnerability.)
Weakness: CWE-285
Which versions are affected by CVE-2022-42961?
It affects 1 product.
Products include Wolfssl Wolfssl.
How do I fix CVE-2022-42961?
Upgrade to a fixed version.
Is CVE-2022-42961 being exploited?
There is no known exploitation of CVE-2022-42961 in the wild and no public exploit code.
Other vulnerabilities in Wolfssl Wolfssl
Sources
Also known as DEBIAN-CVE-2022-42961, GHSA-9xwc-9mfx-fvvq, JLSEC-2026-675, UBUNTU-CVE-2022-42961.