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Buffer Under-read Affecting workerd package, versions <1.20230419.0

0.0
medium

Snyk CVSS

    Attack Complexity High
    Availability High

    Threat Intelligence

    EPSS 0.09% (38th percentile)
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NVD
8.1 high

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  • Snyk ID SNYK-JS-WORKERD-5534524
  • published 14 May 2023
  • disclosed 12 May 2023
  • credit Unknown
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Introduced: 12 May 2023

CVE-2023-2512 Open this link in a new tab
CWE-127 Open this link in a new tab

How to fix?

Upgrade workerd to version 1.20230419.0 or higher.

Overview

workerd is a 👷 workerd, Cloudflare's JavaScript/Wasm Runtime

Affected versions of this package are vulnerable to Buffer Under-read via the FormData API implementation, when containing more than 2^31 elements. The forEach() method can end up reading from the wrong location in memory while iterating over elements.