Race condition in Deno

1) Race condition

EUVDB-ID: #VU88863

Risk: High

CVSSv4.0: 8.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2024-32477

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to a race condition when flushing input stream. A remote attacker can exploit the race and bypass Deno permission policy.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Deno: 1.42.0 - 1.42.1

CPE2.3

• cpe:2.3:a:deno_land:deno:1.42.0:*:*:*:*:*:*:*
• cpe:2.3:a:deno_land:deno:1.42.1:*:*:*:*:*:*:*

External links

https://github.com/denoland/deno/security/advisories/GHSA-95cj-3hr2-7j5j

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.