Vulnerability Description
Deno is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults. The Deno sandbox may be unexpectedly weakened by allowing file read/write access to privileged files in various locations on Unix and Windows platforms. For example, reading `/proc/self/environ` may provide access equivalent to `--allow-env`, and writing `/proc/self/mem` may provide access equivalent to `--allow-all`. Users who grant read and write access to the entire filesystem may not realize that these access to these files may have additional, unintended consequences. The documentation did not reflect that this practice should be undertaken to increase the strength of the security sandbox. Users who run code with `--allow-read` or `--allow-write` may unexpectedly end up granting additional permissions via file-system operations. Deno 1.43 and above require explicit `--allow-all` access to read or write `/etc`, `/dev` on unix platform (as well as `/proc` and `/sys` on linux platforms), and any path starting with `\\` on Windows.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Deno | Deno | < 1.43.1 |
Related Weaknesses (CWE)
References
- https://github.com/denoland/deno/security/advisories/GHSA-23rx-c3g5-hv9wVendor Advisory
- https://github.com/denoland/deno/security/advisories/GHSA-23rx-c3g5-hv9wVendor Advisory
FAQ
What is CVE-2024-34346?
CVE-2024-34346 is a vulnerability with a CVSS score of 8.4 (HIGH). Deno is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults. The Deno sandbox may be unexpectedly weakened by allowing file read/write access to privileged files in various location...
How severe is CVE-2024-34346?
CVE-2024-34346 has been rated HIGH with a CVSS base score of 8.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-34346?
Check the references section above for vendor advisories and patch information. Affected products include: Deno Deno.