CVE-2024-3296 Rust-openssl: timing based side-channel can lead to a bleichenbacher style attack
A timing side-channel in rust-openssl allows attackers to recover plaintext via Bleichenbacher-style attacks on RSA PKCS#1v1.5 padding.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-3296?
CVE-2024-3296 is a medium-severity vulnerability in Red Hat Enterprise Linux 8, published on 4 Apr 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A timing-based side-channel flaw exists in the rust-openssl package, which could be sufficient to recover a plaintext across a network in a Bleichenbacher-style attack. To achieve successful decryption, an attacker would have to be able to send a large number of trial messages for decryption. The vulnerability affects the legacy PKCS#1v1.5 RSA encryption padding mode.
Weakness: CWE-208
Which versions are affected by CVE-2024-3296?
How do I fix CVE-2024-3296?
No fix has been published for CVE-2024-3296 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-3296 being exploited?
There is no known exploitation of CVE-2024-3296 in the wild and no public exploit code.
Sources
Also known as GHSA-w322-w9fv-rx3m, UBUNTU-CVE-2024-3296.