CVE-2019-14317
Published: 11 December 2019
wolfSSL and wolfCrypt 4.1.0 and earlier (formerly known as CyaSSL) generate biased DSA nonces. This allows a remote attacker to compute the long term private key from several hundred DSA signatures via a lattice attack. The issue occurs because dsa.c fixes two bits of the generated nonces.
Priority
Status
Package | Release | Status |
---|---|---|
wolfssl Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
disco |
Ignored
(end of life)
|
|
eoan |
Ignored
(end of life)
|
|
focal |
Not vulnerable
(4.2.0+dfsg-3)
|
|
groovy |
Not vulnerable
(4.2.0+dfsg-3)
|
|
hirsute |
Not vulnerable
(4.2.0+dfsg-3)
|
|
impish |
Not vulnerable
(4.2.0+dfsg-3)
|
|
jammy |
Not vulnerable
(4.2.0+dfsg-3)
|
|
kinetic |
Not vulnerable
(4.2.0+dfsg-3)
|
|
lunar |
Not vulnerable
(4.2.0+dfsg-3)
|
|
mantic |
Not vulnerable
(4.2.0+dfsg-3)
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Needs triage
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.3 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | Low |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |