CVE-2023-49092

MEDIUM

RustCrypto RSA - Covert Timing Channel via Non-Constant-Time Implementation

Title source: llm
STIX 2.1

Description

RustCrypto/RSA is a portable RSA implementation in pure Rust. Due to a non-constant-time implementation, information about the private key is leaked through timing information which is observable over the network. An attacker may be able to use that information to recover the key. There is currently no fix available. As a workaround, avoid using the RSA crate in settings where attackers are able to observe timing information, e.g. local use on a non-compromised computer.

References (2)

Core 2

Scores

CVSS v3 5.9
EPSS 0.0060
EPSS Percentile 44.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-385 CWE-203
Status published
Products (2)
crates.io/rsa 0crates.io
rustcrypto/rsa
Published Nov 28, 2023
Tracked Since Feb 18, 2026