CVE-2019-11727
Public on 2019-07-23
Modified on 2021-07-12
Description
A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox < 68.
Severity
CVSS v3 Base Score
See breakdown
Affected Packages
Platform | Package | Release Date | Advisory | Status |
---|---|---|---|---|
Amazon Linux 1 | nspr | 2021-07-08 | ALAS-2021-1522 | Fixed |
Amazon Linux 2 - Core | nspr | 2020-11-09 | ALAS2-2020-1559 | Fixed |
Amazon Linux 2 - Core | nss | 2020-11-09 | ALAS2-2020-1559 | Fixed |
Amazon Linux 1 | nss-softokn | 2021-07-08 | ALAS-2021-1522 | Fixed |
Amazon Linux 2 - Core | nss-softokn | 2020-11-09 | ALAS2-2020-1559 | Fixed |
Amazon Linux 1 | nss-util | 2021-07-08 | ALAS-2021-1522 | Fixed |
Amazon Linux 2 - Core | nss-util | 2020-11-09 | ALAS2-2020-1559 | Fixed |
CVSS Scores
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv3 | 3.4 | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N |
NVD | CVSSv2 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
NVD | CVSSv3 | 5.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |