Out-of-bounds Read in Deno
CVE-2023-28445
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (60.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Deno — versions 1.32.0
- Deno Runtime — versions 0.102.0
- Deno Serde V8 — versions 0.87.0
- Denoland Deno — versions = 1.32.0
Weakness classification (CWE)
References
- github.com/denoland/deno/security/advisories/GHSA-c25x-cm9x-qqgx (Mitigation, Vendor Advisory)
- github.com/denoland/deno/pull/18395 (Patch, Vendor Advisory)
- github.com/denoland/deno/releases/tag/v1.32.1 (Patch, Release Notes)
Frequently asked questions
- What is CVE-2023-28445?
- CVE-2023-28445 is a critical-severity vulnerability in Deno, classified under Out-of-bounds Read. CVSS score: 9.9/10. Published 2023-03-24.
- How severe is CVE-2023-28445?
- Critical severity. CVSS v3 base score is 9.9 out of 10.