CVE-2022-4304 – openssl-src

Package

Manager: cargo
Name: openssl-src
Vulnerable Version: >=0 <111.25.0 || >=300.0.0 <300.0.12

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

EPSS: 0.0018 pctl0.39879

Details

openssl-src subject to Timing Oracle in RSA Decryption A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. For example, in a TLS connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An attacker that had observed a genuine connection between a client and a server could use this flaw to send trial messages to the server and record the time taken to process them. After a sufficiently large number of messages the attacker could recover the pre-master secret used for the original connection and thus be able to decrypt the application data sent over that connection.

Metadata

Created: 2023-02-08T22:31:42Z
Modified: 2025-02-13T18:36:48Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/02/GHSA-p52g-cm5j-mjv4/GHSA-p52g-cm5j-mjv4.json
CWE IDs: ["CWE-203"]
Alternative ID: GHSA-p52g-cm5j-mjv4
Finding: F026
Auto approve: 1