CVE-2024-3296 MEDIUM

CVE-2024-3296: Rust-openssl: timing based side-channel can lead to a bleichenbacher style attack

Vendor Red Hat
Product Red Hat Enterprise Linux 8
Weakness CWE-208
Published April 4, 2024
Last update February 25, 2026

CVSS base score

5.9/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 4, 2024 CVE published
February 25, 2026 Record updated