StableLib is a stable library of useful TypeScript and JavaScript code. Prior to 2.0.4, the @stablelib/cbor decoder recursively processes nested CBOR arrays, maps, and tags through _decodeValue() without enforcing a maximum nesting depth. A sufficiently deep structure exhausts the JavaScript call stack, causing a decoding exception and potentially terminating an uncaught request worker or process.
This issue is fixed in version 2.0.4.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 3
https://github.com/StableLib/stablelib/commit/0149e18d9d4736e22c257744ca945ebce…
security-advisories@github.com
https://github.com/StableLib/stablelib/releases/tag/@stablelib/cbor@2.0.4
security-advisories@github.com
https://github.com/StableLib/stablelib/security/advisories/GHSA-5jg4-p4qw-cgfr
security-advisories@github.com