CVE-2019-17023

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

After a HelloRetryRequest has been sent, the client may negotiate a lower protocol that TLS 1.3, resulting in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming Application Data records will be ignored. This vulnerability affects Firefox < 72.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1590001

https://usn.ubuntu.com/4234-1/

https://usn.ubuntu.com/4397-1/

https://www.debian.org/security/2020/dsa-4726

https://www.mozilla.org/security/advisories/mfsa2020-01/

Details

Source: MITRE

Published: 2020-01-08

Updated: 2020-07-18

Type: CWE-287

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM

Tenable Plugins

View all (17 total)

IDNameProductFamilySeverity
154457NewStart CGSL CORE 5.05 / MAIN 5.05 : nss Multiple Vulnerabilities (NS-SA-2021-0156)NessusNewStart CGSL Local Security Checks
critical
151520Amazon Linux AMI : nspr, nss-softokn, nss-util (ALAS-2021-1522)NessusAmazon Linux Local Security Checks
critical
147361NewStart CGSL CORE 5.04 / MAIN 5.04 : nss Multiple Vulnerabilities (NS-SA-2021-0019)NessusNewStart CGSL Local Security Checks
critical
147281NewStart CGSL MAIN 6.02 : nss Multiple Vulnerabilities (NS-SA-2021-0053)NessusNewStart CGSL Local Security Checks
critical
145878CentOS 8 : nss and nspr (CESA-2020:3280)NessusCentOS Local Security Checks
critical
142720Amazon Linux 2 : nspr (ALAS-2020-1559)NessusAmazon Linux Local Security Checks
critical
142600CentOS 7 : nss and nspr (CESA-2020:4076)NessusCentOS Local Security Checks
critical
141689Scientific Linux Security Update : nss and nspr on SL7.x x86_64 (20201001)NessusScientific Linux Local Security Checks
critical
141312Oracle Linux 7 : nss / and / nspr (ELSA-2020-4076)NessusOracle Linux Local Security Checks
critical
141059RHEL 7 : nss and nspr (RHSA-2020:4076)NessusRed Hat Local Security Checks
critical
139397Oracle Linux 8 : nspr / nss (ELSA-2020-3280)NessusOracle Linux Local Security Checks
high
139293RHEL 8 : nss and nspr (RHSA-2020:3280)NessusRed Hat Local Security Checks
critical
138646Debian DSA-4726-1 : nss - security updateNessusDebian Local Security Checks
critical
137555Ubuntu 16.04 LTS / 18.04 LTS / 19.10 / 20.04 : NSS vulnerabilities (USN-4397-1)NessusUbuntu Local Security Checks
medium
132854Ubuntu 16.04 LTS / 18.04 LTS / 19.04 / 19.10 : firefox vulnerabilities (USN-4234-1)NessusUbuntu Local Security Checks
high
132709Mozilla Firefox < 72.0 Multiple VulnerabilitiesNessusWindows
high
132708Mozilla Firefox < 72.0 Multiple VulnerabilitiesNessusMacOS X Local Security Checks
high