CVE-2022-22901: There is an Assertion in 'context_p->next_scanner_info_p->type == SCANNER_TYPE_FUNCTION' failed at parser_p...
There is an Assertion in 'context_p->next_scanner_info_p->type == SCANNER_TYPE_FUNCTION' failed at parser_parse_function_arguments in /js/js-parser.c of JerryScript commit a6ab5e9.
Security readout for executives and security teams
Plain-English summary
CVE-2022-22901 describes a JerryScript parser assertion failure in a specific commit. The public bundle does not show a CVSS score, affected release list, CWE, patch, or real-world impact. Treat it as a potential crash or stability issue until vendor evidence clarifies security impact.
Executive priority
Do not treat this as an emergency based on current evidence. Assign vulnerability management follow-up for embedded JerryScript inventory and vendor-status tracking, especially in products processing untrusted scripts.
Technical view
The report names an assertion failure in parser_parse_function_arguments in /js/js-parser.c: context_p->next_scanner_info_p->type == SCANNER_TYPE_FUNCTION. It is tied to JerryScript commit a6ab5e9. The bundle does not establish affected versions, exploitability, or whether this reaches production builds.
Likely exposure
Exposure is most plausible where JerryScript at or near commit a6ab5e9 is embedded and parses untrusted JavaScript. The sources do not identify affected products, packaged releases, CPEs, or downstream vendors.
Exploitation context
No source in the bundle reports active exploitation, and the CVE is not listed as KEV. The available description only supports an assertion failure report, not weaponized exploitation or confirmed security impact.
Researcher notes
The public metadata is sparse: no CVSS, CWE, affected release, CPE, patch, or exploit evidence is provided. The GitHub issue is the key technical reference. Any impact assessment should distinguish assertion/crash behavior from confirmed security exploitability.
Mitigation direction
Check JerryScript project and issue 4916 for vendor guidance or fixed commits.
Inventory products and firmware that embed JerryScript.
Prioritize systems that parse untrusted or attacker-supplied JavaScript.
Avoid assuming all JerryScript releases are affected without vendor confirmation.
Track CVE updates for CVSS, CWE, affected versions, and remediation details.
Validation and detection
Review SBOMs and source dependencies for JerryScript usage.
Identify whether builds include commit a6ab5e9 or nearby vulnerable code.
Confirm whether JavaScript input is accepted from untrusted users or networks.
Review vendor issue 4916 for resolution status before closing exposure.
Document uncertainty where product versions cannot be mapped to the commit.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
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 · low confidence lookup
CVE-2022-22901 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
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.
0CVSS vectors
3Timeline events
1ADP providers
3Source links
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
CVE publishedCVE Program
The CVE record was published.
Feb 17, 2022, 02:40 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.