Bug 2523098 (CVE-2020-37268) - CVE-2020-37268 coq: rocq: Coq and Rocq Provers: Logical inconsistency bypass via Print Assumptions omission
Summary: CVE-2020-37268 coq: rocq: Coq and Rocq Provers: Logical inconsistency bypass ...
Keywords:
Status: NEW
Alias: CVE-2020-37268
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2523137 2523138
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-24 20:21 UTC by OSIDB Bzimport
Modified: 2026-08-24 20:51 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description OSIDB Bzimport 2026-08-24 20:21:23 UTC
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.


Note You need to log in before you can comment on or make changes to this bug.