CVE-2023-28445

Deno improperly handles resizable ArrayBuffer

Description

Deno is a runtime for JavaScript and TypeScript that uses V8 and is built in Rust. Resizable ArrayBuffers passed to asynchronous functions that are shrunk during the asynchronous operation could result in an out-of-bound read/write. It is unlikely that this has been exploited in the wild, as the only version affected is Deno 1.32.0. Deno Deploy users are not affected. The problem has been resolved by disabling resizable ArrayBuffers temporarily in Deno 1.32.1. Deno 1.32.2 will re-enable resizable ArrayBuffers with a proper fix. As a workaround, run with `--v8-flags=--no-harmony-rab-gsab` to disable resizable ArrayBuffers.

Category

9.9
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.28%
Vendor Advisory github.com Vendor Advisory github.com
Affected: denoland deno
Published at:
Updated at:

References

Link Tags
https://github.com/denoland/deno/security/advisories/GHSA-c25x-cm9x-qqgx mitigation vendor advisory
https://github.com/denoland/deno/pull/18395 patch vendor advisory
https://github.com/denoland/deno/releases/tag/v1.32.1 patch release notes

Frequently Asked Questions

What is the severity of CVE-2023-28445?
CVE-2023-28445 has been scored as a critical severity vulnerability.
How to fix CVE-2023-28445?
To fix CVE-2023-28445, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-28445 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-28445 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-28445?
CVE-2023-28445 affects denoland deno.
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