Out-of-bounds Read in Node.js
CVE-2018-21270
Versions less than 0.0.6 of the Node.js stringstream module are vulnerable to an out-of-bounds read because of allocation of uninitialized buffers when a number is passed in the input stream (when using Node.js 4.x).
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H.
EPSS exploit prediction
EPSS: 0.037 (89.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.037 · newest: 0.037 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- hackerone.com/reports/321670 (Exploit, Third Party Advisory)
- www.npmjs.com/advisories/664 (Exploit, Third Party Advisory)
- github.com/mhart/StringStream/issues/7 (Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2018-21270?
- CVE-2018-21270 is a medium-severity vulnerability in Node.js, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2020-12-03.
- How severe is CVE-2018-21270?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2018-21270 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.