CVE-2024-1543 AES T-Table sub-cache-line leakage
An attacker in a controlled environment like Intel SGX can exploit sub-cache-line resolution to break side-channel protections and leak AES key information.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-1543?
CVE-2024-1543 is a medium-severity vulnerability in Wolfssl Wolfssl, published on 29 Aug 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The side-channel protected T-Table implementation in wolfSSL up to version 5.6.5 protects against a side-channel attacker with cache-line resolution. In a controlled environment such as Intel SGX, an attacker can gain a per instruction sub-cache-line resolution allowing them to break the cache-line-level protection. For details on the attack refer to: https://doi.org/10.46586/tches.v2024.i1.457-500
Which versions are affected by CVE-2024-1543?
It affects 1 product.
Products include Wolfssl Wolfssl.
How do I fix CVE-2024-1543?
Upgrade to a fixed version.
Is CVE-2024-1543 being exploited?
There is no known exploitation of CVE-2024-1543 in the wild and no public exploit code.
Other vulnerabilities in Wolfssl Wolfssl
Sources
Also known as DEBIAN-CVE-2024-1543, GHSA-w782-gjg9-cjx6, JLSEC-2026-681, UBUNTU-CVE-2024-1543.