CVE - CVE-2024-43367

CVE-ID
CVE-2024-43367	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
Boa is an embeddable and experimental Javascript engine written in Rust. Starting in version 0.16 and prior to version 0.19.0, a wrong assumption made when handling ECMAScript's `AsyncGenerator` operations can cause an uncaught exception on certain scripts. Boa's implementation of `AsyncGenerator` makes the assumption that the state of an `AsyncGenerator` object cannot change while resolving a promise created by methods of `AsyncGenerator` such as `%AsyncGeneratorPrototype%.next`, `%AsyncGeneratorPrototype%.return`, or `%AsyncGeneratorPrototype%.throw`. However, a carefully constructed code could trigger a state transition from a getter method for the promise's `then` property, which causes the engine to fail an assertion of this assumption, causing an uncaught exception. This could be used to create a Denial Of Service attack in applications that run arbitrary ECMAScript code provided by an external user. Version 0.19.0 is patched to correctly handle this case. Users unable to upgrade to the patched version would want to use `std::panic::catch_unwind` to ensure any exceptions caused by the engine don't impact the availability of the main application.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://github.com/boa-dev/boa/commit/69ea2f52ed976934bff588d6b566bae01be313f7 URL:https://github.com/boa-dev/boa/commit/69ea2f52ed976934bff588d6b566bae01be313f7 MISC:https://github.com/boa-dev/boa/security/advisories/GHSA-f67q-wr6w-23jq URL:https://github.com/boa-dev/boa/security/advisories/GHSA-f67q-wr6w-23jq MISC:https://github.com/tc39/ecma262/security/advisories/GHSA-g38c-wh3c-5h9r URL:https://github.com/tc39/ecma262/security/advisories/GHSA-g38c-wh3c-5h9r
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20240809	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240809)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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