Skip to content

Deno improperly handles resizable ArrayBuffer

Critical severity GitHub Reviewed Published Mar 23, 2023 in denoland/deno • Updated May 4, 2023

Package

cargo Deno (Rust)

Affected versions

= 1.32.0

Patched versions

1.32.1
cargo deno_runtime (Rust)
= 0.102.0
0.103.0
cargo serde_v8 (Rust)
= 0.87.0
0.88.0

Description

Impact

Resizable ArrayBuffers passed to asynchronous native 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.

Patches

The problem has been resolved by disabling resizable ArrayBuffers temporarily in Deno 1.32.1. A future version of Deno will re-enable resizable ArrayBuffers with a proper fix.

Workarounds

Upgrade to Deno 1.32.1, or run with --v8-flags=--no-harmony-rab-gsab to disable resizable ArrayBuffers.

References

@lucacasonato lucacasonato published to denoland/deno Mar 23, 2023
Published to the GitHub Advisory Database Mar 23, 2023
Reviewed Mar 23, 2023
Published by the National Vulnerability Database Mar 24, 2023
Last updated May 4, 2023

Severity

Critical
10.0
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weaknesses

CVE ID

CVE-2023-28445

GHSA ID

GHSA-c25x-cm9x-qqgx

Source code

Credits

Checking history
See something to contribute? Suggest improvements for this vulnerability.