A vulnerability was found in the ping functionality of the ws module before 1.0.0 which allowed clients to allocate memory by sending a ping frame. The ping functionality by default responds with a pong frame and the previously given payload of the ping frame. This is exactly what you expect, but internally ws always transforms all data that we need to send to a Buffer instance and that is where the vulnerability existed. ws didn't do any checks for the type of data it was sending. With buffers in node when you allocate it when a number instead of a string it will allocate the amount of bytes.
CVE-2016-10518
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 43% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 78.9%
- KEV
- Not listed
Published
May 31, 2018
Last Modified
November 21, 2024
References (6)
- support@hackeronehttps://gist.github.com/c0nrad/e92005446c480707a74a
- support@hackeronehttps://github.com/websockets/ws/releases/tag/1.0.1
- support@hackeronehttps://nodesecurity.io/advisories/67
- af854a3a-2127-422b-91ae-364da2661108https://gist.github.com/c0nrad/e92005446c480707a74a
- af854a3a-2127-422b-91ae-364da2661108https://github.com/websockets/ws/releases/tag/1.0.1
- af854a3a-2127-422b-91ae-364da2661108https://nodesecurity.io/advisories/67
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| ws | — | 1.0.1 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 43× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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Related CVEs(same CWE)
Same CWE
10 shownCWE-119
Frequently asked(5)
What is CVE-2016-10518?
When was CVE-2016-10518 disclosed?
Is CVE-2016-10518 actively exploited?
What is the CVSS score of CVE-2016-10518?
How do I remediate CVE-2016-10518?
Dependency Blast Radius
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