Vulnerability in Nodejs Node.js
CVE-2018-0732
During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o).
EPSS: 0.493 (98.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Nodejs Node.js
- Openssl — versions Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o), Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h)
- Canonical Ubuntu_linux — versions 12.04, 14.04, 16.04
- Debian Debian_linux — versions 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- openssl-security@openssl.org (mailing-list, x_refsource_MLIST, Third Party Advisory)
- openssl-security@openssl.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- openssl-security@openssl.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- openssl-security@openssl.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- openssl-security@openssl.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- openssl-security@openssl.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- openssl-security@openssl.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- openssl-security@openssl.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- openssl-security@openssl.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- openssl-security@openssl.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-0732?
- CVE-2018-0732 is a high-severity vulnerability in Nodejs Node.js, classified under CWE-320. CVSS score: 7.5/10. Published 2018-06-12.
- How severe is CVE-2018-0732?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-0732 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.