Security readout for executives and security teams
Plain-English summary
CVE-2019-1010173 is a denial-of-service flaw in Jsish/Jsi. Crafted JavaScript can reach an internal assertion and crash the interpreter. Business impact depends on whether Jsish is used where users, tenants, plugins, or automation can provide JavaScript.
Executive priority
Treat this as targeted availability risk, not a broad enterprise emergency, unless Jsish processes untrusted JavaScript in production. Prioritize inventory and upgrade where service continuity depends on Jsish.
Technical view
The reported issue affects Jsish/Jsi 2.4.84/2.0484 in Jsi_ValueArrayIndex at jsiValue.c:366. The CVE describes a reachable assertion triggered by crafted JavaScript, causing denial of service. The listed fixed state is after commit 738ead193aff380a7e3d7ffb8e11e446f76867f3.
Likely exposure
Exposure is likely limited to systems that embed or run Jsish/Jsi and execute JavaScript from untrusted or semi-trusted sources. The source bundle does not identify packaged downstream products or internet-exposed deployments.
Exploitation context
The CVE states the attack vector is executing crafted JavaScript. There is no KEV listing and no provided evidence of active exploitation. The public data does not provide CVSS scoring, exploit maturity, or broad exploitation indicators.
Researcher notes
Evidence is sparse: the CVE names the vulnerable function, impact, vector, and fixed commit, but provides no CVSS, CWE, exploit status, or downstream product mapping. Validation should focus on version lineage and trust boundaries around JavaScript execution.
Mitigation direction
- Upgrade Jsish/Jsi to a version after commit 738ead193aff380a7e3d7ffb8e11e446f76867f3.
- Check upstream Jsish guidance before relying on any workaround.
- Restrict untrusted JavaScript execution in Jsish-backed workflows until upgraded.
- Prioritize controls around services where Jsish crashes affect availability.
Validation and detection
- Inventory applications, scripts, or embedded components using Jsish/Jsi.
- Confirm whether deployed versions match 2.4.84 or 2.0484.
- Verify whether deployments include the fixed commit or a later upstream release.
- Review whether users or integrations can supply JavaScript to Jsish.
- Check crash logs for failures referencing Jsi_ValueArrayIndex or jsiValue.c.
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-2019-1010173 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://jsish.org/fossil/jsi/tktview/b3278d1a441477d50363d28df79bbf58de2448afCVE reference · x_refsource_CONFIRM
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.