CVE-2024-27935
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.72%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.3 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
- EPSS
- 0.72% probability · 52th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-488
- Affected
- deno/deno
- Source
- security-advisories@github.com
References
- https://github.com/denoland/deno/commit/3e9fb8aafd9834ebacd27734cea4310caaf794c6Patch
- https://github.com/denoland/deno/issues/20188Exploit, Issue Tracking
- https://github.com/denoland/deno/security/advisories/GHSA-wrqv-pf6j-mqjpVendor Advisory
- https://github.com/denoland/deno/commit/3e9fb8aafd9834ebacd27734cea4310caaf794c6Patch
- https://github.com/denoland/deno/issues/20188Exploit, Issue Tracking
- https://github.com/denoland/deno/security/advisories/GHSA-wrqv-pf6j-mqjpVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.