sprintf-js through 1.1.3 passes unbounded precision specifiers to toFixed, toExponential, and toPrecision methods without validation, causing uncaught RangeError exceptions. Attackers who control format strings can inject precision values exceeding ECMAScript limits to abort calling operations with minimal payload.
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
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
alexei:sprintf-js
References 5
https://github.com/alexei/sprintf.js/issues/237
GitHub Issue #237
https://github.com/alexei/sprintf.js/blob/3a0d8c26d291b5bd9f1974877ecc50739921d…
NVD
https://github.com/alexei/sprintf.js/blob/3a0d8c26d291b5bd9f1974877ecc50739921d…
NVD
https://github.com/alexei/sprintf.js
NVD
https://www.vulncheck.com/advisories/sprintf-js-through-1.1.3-denial-of-service…
VulnCheck Advisory: sprintf-js through 1.1.3 Denial of Service via Unbounded Precision