Security readout for executives and security teams
Plain-English summary
CVE-2018-11419 is a memory-safety bug in JerryScript 1.0, a lightweight JavaScript engine. A malformed regular expression could make the engine read past a heap buffer. Public data here does not include CVSS scoring, confirmed exploitation, or a named fixed version, so urgency depends on whether JerryScript 1.0 is embedded in your products.
Executive priority
Treat this as an inventory-driven issue. It should not outrank confirmed exploited vulnerabilities, but teams shipping embedded JavaScript runtimes should verify exposure because no authoritative severity or fix details are provided in the bundle.
Technical view
The issue is a heap-based buffer over-read in lit_read_code_unit_from_hex during regular-expression character-class parsing, related to re_parse_char_class in parser/regexp/re-parser.c. The CVE description ties it to malformed Unicode escape handling in RegExp parsing. Available metadata lacks CWE, CVSS, CPE, and remediation detail.
Likely exposure
Exposure is most likely in firmware, appliances, IoT, or applications embedding JerryScript 1.0 or derived code. The source bundle lists affected product/version fields as n/a, so inventory confirmation is required.
Exploitation context
The bundle does not report CISA KEV listing or active exploitation. The public description identifies a malformed RegExp parsing trigger, but available evidence here does not establish remote reachability, privilege impact, or practical exploitability.
Researcher notes
Useful next work is version archaeology: map issue 2230 to the fixing commit or release, then test only authorized builds for crash or memory-read behavior. Do not assume downstream products are affected without confirming their embedded JerryScript version.
Mitigation direction
- Identify any products or firmware embedding JerryScript 1.0.
- Check JerryScript project guidance and issue history for fixed revisions.
- Prefer upgrading embedded JerryScript rather than carrying local parser patches.
- Restrict untrusted JavaScript execution where JerryScript is exposed.
- Track vendor advisories for downstream products using JerryScript.
Validation and detection
- Search SBOMs and firmware manifests for JerryScript 1.0.
- Review embedded JavaScript engine source paths for regexp parser files.
- Confirm whether untrusted users can submit JavaScript or RegExp input.
- Check vendor release notes for JerryScript updates after this CVE.
- Document compensating controls if upgrade status is unclear.
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-2018-11419 mapping review
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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/jerryscript-project/jerryscript/issues/2230CVE 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.