vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2019-13628

MEDIUM
4.7
CVSS Score
Published: October 3, 2019 at 01:20 PM UTC
Updated: June 17, 2026 at 02:17 AM UTC
1 product affected across 1 vendorwolfSSL

Using N/A by N/A?

Get instant alerts when new vulnerabilities affect N/A - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM4.7
Exploit prediction
EPSS 0.4%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

wolfSSL· Wolfssl
95%
v ≤ 4.0.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2019/10/02/2
x_refsource_MISCTechnical DescriptionThird Party Advisory
Source: [email protected]
https://eprint.iacr.org/2011/232.pdf
x_refsource_MISCProduct
Source: [email protected]
https://minerva.crocs.fi.muni.cz/
x_refsource_MISCTechnical DescriptionThird Party Advisory
Source: [email protected]
https://tches.iacr.org/index.php/TCHES/article/view/7337

CVSS

4.7MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-203

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card