Security readout for executives and security teams
Plain-English summary
This flaw can crash vulnerable Espruino versions when they parse a specially crafted input file. The known impact is denial of service, not data theft or code execution. Business urgency depends on whether Espruino parses files from untrusted users or automated pipelines.
Executive priority
Prioritize remediation where Espruino processes untrusted files or supports production automation. For isolated developer tooling with trusted inputs, handle through normal maintenance. The main business risk is service interruption from application crashes.
Technical view
CVE-2018-11590 affects Espruino before 1.99. The source describes an integer overflow during syntax parsing that can cause an application crash. The fix addressed stack size detection on Linux in jsutils.c. The provided record has no CVSS score, CWE, CPE list, or detailed affected-product matrix.
Likely exposure
Exposure is likely limited to systems running Espruino before 1.99 that parse crafted or user-supplied input files. Linux builds deserve specific review because the cited fix concerns Linux stack size detection. The CVE record does not identify downstream packages or embedded products.
Exploitation context
The provided sources do not show active exploitation, and the CVE is not listed as KEV. A public issue, commit, and attached crafted input are referenced, so technical details were publicly available. Treat internet-facing or multi-tenant parsing workflows as higher concern.
Researcher notes
Evidence is sparse: no CVSS, CWE, CPEs, or vendor advisory beyond GitHub references. The root issue is described as integer overflow in syntax parsing, fixed through Linux stack size detection logic. Do not infer broader memory corruption impact from the supplied sources.
Mitigation direction
- Upgrade Espruino to version 1.99 or later where feasible.
- Review the referenced commit for patch applicability to maintained forks.
- Limit parsing of untrusted input files until fixed.
- Monitor Espruino vendor guidance for any additional affected-version details.
Validation and detection
- Inventory systems, firmware, and build pipelines using Espruino.
- Confirm deployed Espruino versions are 1.99 or later.
- Check whether Espruino parses files from users or external automation.
- Verify Linux builds include the jsutils.c stack size detection fix.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2018-11590 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/espruino/Espruino/issues/1427CVE reference · x_refsource_MISC
- https://github.com/espruino/Espruino/commit/a0d7f432abee692402c00e8b615ff5982dde9780CVE reference · x_refsource_MISC
- https://github.com/espruino/Espruino/files/2019243/so_0.txtCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.