Uncaught Exception Affecting boa_engine package, versions >=0.16.0 <0.19.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RUST-BOAENGINE-7687587
- published15 Aug 2024
- disclosed14 Aug 2024
- creditarai-a
Introduced: 14 Aug 2024
CVE-2024-43367 (opens in a new tab)How to fix?
Upgrade boa_engine to version 0.19.0 or higher.
Overview
Affected versions of this package are vulnerable to Uncaught Exception due to the handling of AsyncGenerator operations. This allows an attacker to trigger a state transition from a getter method for the then property, which causes the engine to fail an assertion of the assumption.
Workaround
Users who are unable to upgrade to the fixed version can use std::panic::catch_unwind to make sure exceptions caused by the engine won't impact the availability of the main application.