| Título | uBlock @gorhill/ubo-core >=npm_0.1.11 Inefficient Regular Expression Complexity |
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| Descripción | A potential Regular Expression Denial of Service (ReDoS)vulnerability in the 1p-filters.js script of uBlock Origin. The vulnerabilityoccurs due to the use of the regular expression /\s+$/, which is used to removetrailing whitespace. This issue can lead to a denial of service when processingstrings with a large number of trailing spaces, potentially causing a browser tofreeze.
The regular expression /\s+$/ is applied to remove trailing whitespace in user‑provided content. However, when the content has a large number of spaces(e.g., ~100,000), this pattern causes excessive backtracking in the regularexpression engine, resulting in performance degradation and UI freezing. This is a classic ReDoS attack vector. |
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| Fuente | ⚠️ https://github.com/gorhill/uBlock/commit/eaedaf5b10d2f7857c6b77fbf7d4a80681d4d46c |
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| Usuario | DayShift (UID 80963) |
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| Sumisión | 2025-04-19 10:04 (hace 1 Año) |
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| Moderación | 2025-05-02 14:53 (13 days later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 307194 [gorhill uBlock Origin hasta 1.63.3b16 UI src/js/1p-filters.js currentStateChanged denegación de servicio] |
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| Puntos | 20 |
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