Security readout for executives and security teams
Plain-English summary
CVE-2018-1000655 is a crash vulnerability in Jsish 2.4.65. A specially crafted JavaScript input can trigger a NULL pointer dereference and segmentation fault. The documented impact is denial of service, not data theft or remote code execution. The source bundle says it was fixed in Jsish 2.4.67.
Executive priority
Treat this as a targeted availability risk. Prioritize remediation if Jsish handles customer-supplied or external JavaScript, or if a crash would disrupt production services. Otherwise, handle through normal dependency hygiene.
Technical view
The issue is described as CWE-476 in jsi_ValueCopyMove in jsiValue.c around line 240. Crafted JavaScript can cause a NULL pointer dereference, crashing the Jsish process. No CVSS score, active exploitation evidence, or broader affected-product inventory is provided in the supplied sources.
Likely exposure
Exposure is likely limited to systems embedding or invoking Jsish 2.4.65, especially where users or external systems can provide JavaScript processed by Jsish. The supplied CVE metadata does not identify CPEs, packages, distributions, or downstream products.
Exploitation context
The source bundle supports exploitability through crafted JavaScript causing a crash. It does not support claims of active exploitation, privilege escalation, information disclosure, or code execution. CISA KEV status is false in the supplied data.
Researcher notes
The available evidence is sparse: one confirmed vendor reference, no CVSS vector, no CPE data, and no KEV listing. Analysis should focus on locating Jsish 2.4.65 and understanding whether untrusted JavaScript can reach it.
Mitigation direction
- Upgrade affected Jsish 2.4.65 installations to fixed version 2.4.67.
- Check current vendor guidance if 2.4.67 is unavailable or unsupported.
- Do not process untrusted JavaScript with vulnerable Jsish until remediated.
- Reduce service restart impact with process supervision and crash monitoring.
Validation and detection
- Inventory hosts, containers, and embedded components for Jsish usage.
- Confirm whether any deployed Jsish version is 2.4.65.
- Review application paths where Jsish processes user-controlled JavaScript.
- Verify upgraded systems report Jsish 2.4.67 or a vendor-approved fixed build.
- Check logs for unexplained Jsish segmentation faults or repeated process crashes.
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-2018-1000655 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/3b8f95574f2c9dddf5ffea71e0086b2e6f6dd71eCVE 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.