Information disclosure in Node.js
CVE-2015-3193
The Montgomery squaring implementation in crypto/bn/asm/x86_64-mont5.pl in OpenSSL 1.0.2 before 1.0.2e on the x86_64 platform, as used by the BN_mod_exp function, mishandles carry propagation and produces incorrect output, which makes it easier for remote attackers to obtain sensitive private-key information via an attack against use of a (1) Diffie-Hellman (DH) or (2) Diffie-Hellman Ephemeral (DHE) ciphersuite.
Vulnerability class: Information Disclosure
Published · last modified .
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:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.251 (97.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.251 · newest: 0.251 · change: 0.000
Affected products
- Node.js
- OpenSSL — versions 1.0.2, 1.0.2a, 1.0.2b
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.04
Weakness classification (CWE)
Public proof-of-concept exploits
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151204… (vendor-advisory, Third Party Advisory)
- kb.isc.org/article/AA-01438 (Third Party Advisory)
- www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html (Patch, Third Party Advisory)
- blog.fuzzing-project.org/31-Fuzzing-Math-miscalculations-in-OpenSSLs-BN_mod_exp… (Third Party Advisory)
- www.fortiguard.com/advisory/openssl-advisory-december-2015 (Third Party Advisory)
- www.slackware.com/security/viewer.php (vendor-advisory, Third Party Advisory)
- www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html (Patch, Third Party Advisory)
- kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40100 (Third Party Advisory)
- www.slackware.com/security/viewer.php (vendor-advisory, Third Party Advisory)
- kb.juniper.net/InfoCenter/index (Third Party Advisory)
Frequently asked questions
- What is CVE-2015-3193?
- CVE-2015-3193 is a high-severity vulnerability in Node.js, classified under Information Disclosure. CVSS score: 7.5/10. Published 2015-12-06.
- How severe is CVE-2015-3193?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2015-3193 known to be exploited?
- 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.