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Coq and Rocq Prover Print Assumptions Omits Unsafe Universe Checking Inlined Through Parameter Inline

Type: advisorySource: Official CVE List1 source record

Print Assumptions does not report that a definition was produced while universe checking was disabled when that definition reaches the caller through Parameter Inline in a module type. Applying a functor inlines the body of the parameter, and the inlining drops the record that the term was built under Unset Universe Checking, so the resulting constant carries no trace of the unsafe operation. A module implementation can therefore prove False using a universe inconsistency, expose it through an inlined parameter, and have Print Assumptions report the dependent proof as closed under the global context. Because Print Assumptions is the in-process audit used to confirm that a development rests on no unexpected assumptions, a dependency built this way passes that audit while proving arbitrary propositions. The standalone checker coqchk does reject the resulting compiled file. The project records this in dev/doc/critical-bugs.md under non-fixed bugs and rates the risk as moderate when coqchk is not used.

Announced Source revision 1
Original source ↗

CVE-2020-37268

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2020-37268

rocq

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://github.com/rocq-prover/rocq",
    "vendor": "rocq-prover",
    "product": "rocq",
    "versions": [
      {
        "status": "affected",
        "version": "8.11",
        "versionType": "custom",
        "lessThanOrEqual": "9.2.0"
      }
    ],
    "packageURL": "pkg:github/rocq-prover/rocq",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2020-37268

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#844 · Revision 1
Added to Heist Feed
Publisher date
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