Security readout for executives and security teams
Plain-English summary
CVE-2018-1000668 is a crash vulnerability in jsish. If a system runs crafted JavaScript through the affected interpreter, it may segfault. The available sources do not indicate data theft, remote code execution, or active exploitation.
Executive priority
Treat this as a targeted availability risk, not a broad emergency. Patch or remove affected jsish where present, especially if it processes scripts from users, partners, or automated workflows.
Technical view
The CVE describes a CWE-125 out-of-bounds read in jsi_ObjArrayLookup in jsiObj.c around line 274. The reported impact is a segmentation-fault crash when crafted JavaScript is executed. The vulnerability is reported fixed in jsish 2.4.71.
Likely exposure
Exposure appears limited to environments that install, embed, or execute jsish version 2.4.70 or the cited 2.047 release. The provided affected-product metadata is incomplete, so confirm actual package names and versions locally.
Exploitation context
Sources say exploitation requires the victim to execute crafted JavaScript code. CISA KEV status is false, and the supplied sources do not report active exploitation or public weaponization.
Researcher notes
The source bundle gives a narrow technical claim: out-of-bounds read in jsi_ObjArrayLookup causing crash. It does not provide CVSS, detailed affected CPEs, proof of exploitation, or broader impact claims.
Mitigation direction
- Upgrade affected jsish deployments to version 2.4.71 or later.
- Check the jsish vendor ticket for any additional guidance.
- Inventory applications that embed or bundle jsish.
- Restrict execution of untrusted JavaScript in jsish.
- Prioritize remediation where jsish supports production automation or services.
Validation and detection
- Confirm whether jsish is installed or bundled in applications.
- Record the deployed jsish version and compare with 2.4.71.
- Review crash logs for unexplained jsish segmentation faults.
- Verify untrusted JavaScript cannot reach jsish execution paths.
- Document negative findings because affected-product metadata is incomplete.
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
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CVE-2018-1000668 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://jsish.org/fossil/jsi/tktview?name=9602dbd997CVE 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.