Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2019-13628

Published: 3 October 2019

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.

Priority

Low

Cvss 3 Severity Score

4.7

Score breakdown

Status

Package Release Status
wolfssl
Launchpad, Ubuntu, Debian
jammy Not vulnerable
(4.1.0+dfsg-2)
kinetic Not vulnerable
(4.1.0+dfsg-2)
lunar Not vulnerable
(4.1.0+dfsg-2)
bionic Needs triage

disco Ignored
(end of life)
eoan Not vulnerable
(4.1.0+dfsg-2)
focal Not vulnerable
(4.1.0+dfsg-2)
groovy Not vulnerable
(4.1.0+dfsg-2)
hirsute Not vulnerable
(4.1.0+dfsg-2)
impish Not vulnerable
(4.1.0+dfsg-2)
trusty Does not exist

upstream
Released (4.1.0+dfsg-1)
xenial Needs triage

mantic Not vulnerable
(4.1.0+dfsg-2)

Severity score breakdown

Parameter Value
Base score 4.7
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N