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
Status
Package | Release | Status |
---|---|---|
wolfssl Launchpad, Ubuntu, Debian |
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)
|
|
jammy |
Not vulnerable
(4.1.0+dfsg-2)
|
|
kinetic |
Not vulnerable
(4.1.0+dfsg-2)
|
|
lunar |
Not vulnerable
(4.1.0+dfsg-2)
|
|
mantic |
Not vulnerable
(4.1.0+dfsg-2)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.1.0+dfsg-1)
|
|
xenial |
Needs triage
|
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 |