Login Request a demo
Medium severity · published Apr 29, 2019
CVE-2018-12384
When handling a SSLv2-compatible ClientHello request, the server doesn't generate a new random value but sends an all-zero value instead
5.9
CVSS
1.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Network Security Services · Mozilla
before 3.39 · source: NVD
Affected product
NS
Network Security Services
Mozilla
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-12384
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-12384
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2018-12384
www.oracle.com
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
More from Network Security Services
9.8
CVE-2019-17006
In Network Security Services (NSS) before 3.46, several cryptographic primitives had missing length checks
9.8
CVE-2017-5461
Mozilla Network Security Services (NSS) before 3.21.4, 3.22.x through 3.28.x before 3.28.4, 3.29.x before 3.29.5, and 3.30.x before 3.30.1 allows remote attackers to cause a…
9.8
CVE-2015-7182
Heap-based buffer overflow in the ASN.1 decoder in Mozilla Network Security Services (NSS) before 3.19.2.1 and 3.20.x before 3.20.1, as used in Firefox before 42.0 and Firefox ESR…
8.8
CVE-2016-2834
Mozilla Network Security Services (NSS) before 3.23, as used in Mozilla Firefox before 47.0, allows remote attackers to cause a denial of service (memory corruption and…
8.8
CVE-2016-1979
Use-after-free vulnerability in the PK11_ImportDERPrivateKeyInfoAndReturnKey function in Mozilla Network Security Services (NSS) before 3.21.1, as used in Mozilla Firefox before…