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Advisories

sprintf-js through 1.1.3 Denial of Service via Unbounded Precision

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severity
medium
date
Affecting

  • sprintf-js <= 1.1.3

CWE
  • CWE-1284 Improper Validation of Specified Quantity in Input
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Credit
Wayde Shi (PayPal Cyber Security Team)
Description
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.

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