VYPR
High severityNVD Advisory· Published Mar 6, 2024· Updated Aug 2, 2024

Deno's Node.js Compatibility Runtime has Cross-Session Data Contamination

CVE-2024-27935

Description

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 1.35.1 and prior to version 1.36.3, a vulnerability in Deno's Node.js compatibility runtime allows for cross-session data contamination during simultaneous asynchronous reads from Node.js streams sourced from sockets or files. The issue arises from the re-use of a global buffer (BUF) in stream_wrap.ts used as a performance optimization to limit allocations during these asynchronous read operations. This can lead to data intended for one session being received by another session, potentially resulting in data corruption and unexpected behavior. This affects all users of Deno that use the node.js compatibility layer for network communication or other streams, including packages that may require node.js libraries indirectly. Version 1.36.3 contains a patch for this issue.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
denocrates.io
>= 1.35.1, < 1.36.31.36.3

Affected products

2

Patches

Vulnerability mechanics

References

5

News mentions

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