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.
References (3)
Core 3
Core References
Mitigation, Vendor Advisory x_refsource_confirm
https://github.com/denoland/deno/security/advisories/GHSA-c25x-cm9x-qqgx
Patch, Vendor Advisory x_refsource_misc
https://github.com/denoland/deno/pull/18395
Patch, Release Notes x_refsource_misc
https://github.com/denoland/deno/releases/tag/v1.32.1
Scores
CVSS v3
9.9
EPSS
0.0072
EPSS Percentile
72.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
InTheWild.io
2023-03-24
CWE
CWE-125
CWE-787
Status
published
Products (6)
crates.io/Deno
1.32.0 - 1.32.1crates.io
crates.io/deno_runtime
0.102.0 - 0.103.0crates.io
crates.io/serde_v8
0.87.0 - 0.88.0crates.io
deno/deno
1.32.0
deno/deno_runtime
0.102.0
deno/serde_v8
0.87.0
Published
Mar 24, 2023
Tracked Since
Feb 18, 2026