Rocq up to 9.2.0 Print Assumptions dev/doc/critical-bugs.md input validation

Summaryinfo

A vulnerability, which was classified as problematic, was found in Rocq up to 9.2.0. This issue affects some unknown processing of the file dev/doc/critical-bugs.md of the component Print Assumptions. Executing a manipulation can lead to input validation. This vulnerability is handled as CVE-2020-37268. It is possible to launch the attack on the local host. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Rocq up to 9.2.0 and classified as problematic. This vulnerability affects some unknown functionality of the file dev/doc/critical-bugs.md of the component Print Assumptions. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect integrity. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability was named CVE-2020-37268 since 08/19/2026. The exploitation appears to be easy. The attack needs to be approached locally. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

• Rocq

Version

• 9.0
• 9.1
• 9.2.0

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