CVE-2018-12384

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

When handling a SSLv2-compatible ClientHello request, the server doesn't generate a new random value but sends an all-zero value instead. This results in full malleability of the ClientHello for SSLv2 used for TLS 1.2 in all versions prior to NSS 3.39. This does not impact TLS 1.3.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2018-12384

https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

Details

Source: MITRE

Published: 2019-04-29

Updated: 2020-08-24

Type: CWE-335

Risk Information

CVSS v2

Base Score: 4.3

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

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Impact Score: 3.6

Exploitability Score: 2.2

Severity: MEDIUM

Tenable Plugins

View all (29 total)

IDNameProductFamilySeverity
127386NewStart CGSL MAIN 4.05 : nss Vulnerability (NS-SA-2019-0131)NessusNewStart CGSL Local Security Checks
medium
127200NewStart CGSL CORE 5.04 / MAIN 5.04 : nss Multiple Vulnerabilities (NS-SA-2019-0033)NessusNewStart CGSL Local Security Checks
high
124900EulerOS Virtualization for ARM 64 3.0.1.0 : nss (EulerOS-SA-2019-1397)NessusHuawei Local Security Checks
medium
123855EulerOS Virtualization 2.5.3 : nss (EulerOS-SA-2019-1169)NessusHuawei Local Security Checks
medium
123408openSUSE Security Update : mozilla-nss (openSUSE-2019-998)NessusSuSE Local Security Checks
medium
123164openSUSE Security Update : mozilla-nspr and mozilla-nss (openSUSE-2019-1039)NessusSuSE Local Security Checks
medium
121068Juniper Junos Space 18.4.x < 18.4R1 Multiple Vulnerabilities (JSA10917)NessusJunos Local Security Checks
high
121062Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 18.10 : nss vulnerabilities (USN-3850-1)NessusUbuntu Local Security Checks
medium
120778Fedora 29 : nspr / nss / nss-softokn / nss-util (2018-c72d2d89ec)NessusFedora Local Security Checks
medium
120262Fedora 28 : nspr / nss / nss-softokn / nss-util (2018-1a7a5c54c2)NessusFedora Local Security Checks
medium
120193SUSE SLED15 / SLES15 Security Update : MozillaFirefox, mozilla-nspr / mozilla-nss (SUSE-SU-2018:4235-1)NessusSuSE Local Security Checks
critical
119948openSUSE Security Update : mozilla-nspr and mozilla-nss (openSUSE-2018-1618)NessusSuSE Local Security Checks
medium
119871SUSE SLED12 / SLES12 Security Update : MozillaFirefox, mozilla-nspr / mozilla-nss (SUSE-SU-2018:4236-1)NessusSuSE Local Security Checks
critical
119670openSUSE Security Update : mozilla-nss (openSUSE-2018-1540)NessusSuSE Local Security Checks
medium
119086Virtuozzo 6 : nss / nss-devel / nss-pkcs11-devel / nss-sysinit / etc (VZLSA-2018-2898)NessusVirtuozzo Local Security Checks
medium
118760EulerOS 2.0 SP3 : nss (EulerOS-SA-2018-1366)NessusHuawei Local Security Checks
medium
118741EulerOS 2.0 SP2 : nss (EulerOS-SA-2018-1358)NessusHuawei Local Security Checks
medium
118402Amazon Linux 2 : nss (ALAS-2018-1095)NessusAmazon Linux Local Security Checks
medium
118362Amazon Linux AMI : nss (ALAS-2018-1095)NessusAmazon Linux Local Security Checks
medium
118058Scientific Linux Security Update : nss on SL6.x i386/x86_64 (20181009)NessusScientific Linux Local Security Checks
medium
118051OracleVM 3.3 / 3.4 : nss (OVMSA-2018-0264)NessusOracleVM Local Security Checks
medium
118030RHEL 6 : nss (RHSA-2018:2898)NessusRed Hat Local Security Checks
medium
118027Oracle Linux 6 : nss (ELSA-2018-2898)NessusOracle Linux Local Security Checks
medium
118022CentOS 6 : nss (CESA-2018:2898)NessusCentOS Local Security Checks
medium
117832CentOS 7 : nss (CESA-2018:2768)NessusCentOS Local Security Checks
medium
117788Scientific Linux Security Update : nss on SL7.x x86_64 (20180925)NessusScientific Linux Local Security Checks
medium
117778RHEL 7 : nss (RHSA-2018:2768)NessusRed Hat Local Security Checks
medium
117768Oracle Linux 7 : nss (ELSA-2018-2768)NessusOracle Linux Local Security Checks
medium
117532Fedora 27 : nspr / nss / nss-softokn / nss-util (2018-4a21a8ca59)NessusFedora Local Security Checks
medium