What is the severity of CVE-2019-13628?

The severity of CVE-2019-13628 is medium, with a severity value of 4.7.

What software is affected by CVE-2019-13628?

wolfSSL and wolfCrypt versions 4.0.0 and earlier without the configurations '--enable-fpecc', '--enable-sp', or '--enable-sp-math' are affected by CVE-2019-13628.

How can a local attacker exploit CVE-2019-13628?

A local attacker, who can measure the duration of signature operations with precision, can exploit CVE-2019-13628 by inferring information through the timing side channel in ECDSA signature generation.

How can I fix CVE-2019-13628?

To fix CVE-2019-13628, upgrade to version 4.1.0 or later of wolfSSL and wolfCrypt.

Vulnerability/
CVE-2019-13628

medium

4.7

CWE

203

3/10/2019

24/5/2022

4/8/2024

CVE-2019-13628

Q: What is the vulnerability ID CVE-2019-13628?

The vulnerability ID CVE-2019-13628 refers to a timing side channel in ECDSA signature generation in wolfSSL and wolfCrypt 4.0.0 and earlier.

First published: Thu Oct 03 2019(Updated: )

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.

Credit: cve@mitre.org cve@mitre.org

Affected Software	Affected Version	How to fix
pip/wolfcrypt	<=4.0.0	4.1.0
WolfSSL wolfssl	<=4.0.0

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the vulnerability ID CVE-2019-13628?
The vulnerability ID CVE-2019-13628 refers to a timing side channel in ECDSA signature generation in wolfSSL and wolfCrypt 4.0.0 and earlier.
What is the severity of CVE-2019-13628?
The severity of CVE-2019-13628 is medium, with a severity value of 4.7.
What software is affected by CVE-2019-13628?
wolfSSL and wolfCrypt versions 4.0.0 and earlier without the configurations '--enable-fpecc', '--enable-sp', or '--enable-sp-math' are affected by CVE-2019-13628.
How can a local attacker exploit CVE-2019-13628?
A local attacker, who can measure the duration of signature operations with precision, can exploit CVE-2019-13628 by inferring information through the timing side channel in ECDSA signature generation.
How can I fix CVE-2019-13628?
To fix CVE-2019-13628, upgrade to version 4.1.0 or later of wolfSSL and wolfCrypt.

collector/github-advisory-latest
alias/GHSA-q95h-vc86-hv77
alias/CVE-2019-13628
collector/github-advisory
agent/author
agent/type
agent/references
collector/mitre-cve
source/MITRE
agent/weakness
agent/last-modified-date
agent/severity
agent/description
agent/first-publish-date
agent/event
collector/nvd-index
agent/software-canonical-lookup-request
collector/nvd-cve
agent/tags
agent/softwarecombine
agent/trending
package-manager/pip
vendor/wolfssl
canonical/wolfssl wolfssl
version/wolfssl wolfssl/4.0.0

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.