Calling Buffer.fill() or Buffer.alloc() with some parameters can lead to a hang which could result in a Denial of Service.
Calling Buffer.fill() or Buffer.alloc() with some parameters can lead to a hang which could result in a Denial of Service. In order to address this vulnerability, the implementations of Buffer.alloc() and Buffer.fill() were updated so that they zero fill instead of hanging in these cases. All versions of Node.js 6.x (LTS "Boron"), 8.x (LTS "Carbon"), and 9.x are vulnerable. All versions of Node.js 10.x (Current) are NOT vulnerable.
- Published
- Jun 13, 2018
- Updated
- Jun 16, 2026
- EPSS
- 7.1% · 94th percentile
- CWE
- CWE-119
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Report tools
Action score
32
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 2 / 30 · 7.1%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| nodejs | node.js | cpe:2.3:a:nodejs:node.js |
Using node.js? Add it to your stack and be the first to know about CVEs like this one. (Node.js)
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- nodejs node.jsafter 6.9.0 · before 6.14.3
- nodejs node.js8.9.0 and later · before 8.11.3
- nodejs node.js9.0.0 and later · before 9.11.2
Versions reported by the vendor
Affected version ranges reported by the assigning authority (nodejs). Independent of NVD's CPE analysis and usually ahead of it.
The Node.js Project Node.js
- 6.x+, 8.x+, 9.x+, 10.x+affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Alpine:v3.10 | nodejs | before 8.11.3-r0 | 8.11.3-r0 |
| Debian:12 | nodejs | before 10.15.0~dfsg-6 | 10.15.0~dfsg-6 |
| Red Hat:rhel_software_collections:3::el7 | rh-nodejs8-nodejs | before 0:8.11.4-1.el7 | 0:8.11.4-1.el7 |
| Red Hat:rhel_software_collections:3::el7 | rh-nodejs8-nodejs-debuginfo | before 0:8.11.4-1.el7 | 0:8.11.4-1.el7 |
| Red Hat:rhel_software_collections:3::el7 | rh-nodejs8-nodejs-devel | before 0:8.11.4-1.el7 | 0:8.11.4-1.el7 |
| Red Hat:rhel_software_collections:3::el7 | rh-nodejs8-nodejs-docs | before 0:8.11.4-1.el7 | 0:8.11.4-1.el7 |
| Red Hat:rhel_software_collections:3::el7 | rh-nodejs8-npm | before 0:5.6.0-8.11.4.1.el7 | 0:5.6.0-8.11.4.1.el7 |
| SUSE:Linux Enterprise Module for Web and Scripting 15 | nodejs8 | before 8.11.3-3.5.1 | 8.11.3-3.5.1 |
| SUSE:OpenStack Cloud 7 | nodejs6 | before 6.14.3-11.15.1 | 6.14.3-11.15.1 |
Same product
nodejs: all recordsOther highest-scoring records for the same primary product.
- CVE-2019-15605HTTP request smuggling in Node.js 10, 12, and 13 causes malicious payload delivery when transfer-encoding is malformed56Plan
- CVE-2021-22883Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to a denial of service attack when too many connection attempts with an 52Plan
- CVE-2021-22930Node.js before 16.6.0, 14.17.4, and 12.22.4 is vulnerable to a use after free attack where an attacker might be able to exploit the memory c50Plan
- CVE-2021-22931Node.js before 16.6.0, 14.17.4, and 12.22.4 is vulnerable to Remote Code Execution, XSS, Application crashes due to missing input validation46Plan
- CVE-2020-8277A Node.js application that allows an attacker to trigger a DNS request for a host of their choice could trigger a Denial of Service in versi46Plan
- CVE-2017-14849Node.js 8.5.0 before 8.6.0 allows remote attackers to access unintended files, because a change to ".." handling was incompatible with the p46Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| alpine:nodejs | 8.11.3-r0 · Alpine:v3.10 | Package registry (OSV) |
| debian:nodejs | 10.15.0~dfsg-6 · Debian:12 | Package registry (OSV) |
| red hat:rh-nodejs8-nodejs | 0:8.11.4-1.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-nodejs8-nodejs-debuginfo | 0:8.11.4-1.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-nodejs8-nodejs-devel | 0:8.11.4-1.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-nodejs8-nodejs-docs | 0:8.11.4-1.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| red hat:rh-nodejs8-npm | 0:5.6.0-8.11.4.1.el7 · Red Hat:rhel_software_collections:3::el7 | Package registry (OSV) |
| suse:nodejs6 | 6.14.3-11.15.1 · SUSE:OpenStack Cloud 7 | Package registry (OSV) |
| suse:nodejs8 | 8.11.3-3.5.1 · SUSE:Linux Enterprise Module for Web and Scripting 15 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory BufferCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Buffer ManipulationCAPEC-123likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- MIME ConversionCAPEC-42likelihood: High · High
- Overflow Binary Resource FileCAPEC-44likelihood: High · Very High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: High · High
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
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References
- www.securityfocus.com/bid/106363
- nodejs.org/en/blog/vulnerability/june-2018-security-releases/
- security.gentoo.org/glsa/202003-48
Vendor advisories and official records. Exploit/PoC links are deliberately left out.