CVE-2019-13628 – wolfcrypt

Package

Manager: pip
Name: wolfcrypt
Vulnerable Version: >=0 <4.1.0

Severity

Level: Medium

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

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

EPSS: 0.00145 pctl0.35432

Details

wolfCrypt leaks cryptographic information via timing side channel wolfSSL and wolfCrypt 4.0.0 and earlier (when configured without `--enable-fpecc`, `--enable-sp`, or` --enable-sp-math`) contain a timing side channel in ECDSA signature generation. This allows a local attacker, able to precisely measure the duration of signature operations, to infer information about the nonces used and potentially mount a lattice attack to recover the private key used. The issue occurs because ecc.c scalar multiplication might leak the bit length.

Metadata

Created: 2022-05-24T16:57:48Z
Modified: 2023-09-25T19:35:50Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-q95h-vc86-hv77/GHSA-q95h-vc86-hv77.json
CWE IDs: ["CWE-203"]
Alternative ID: GHSA-q95h-vc86-hv77
Finding: F026
Auto approve: 1