#VU69546 Race condition in tokio - CVE-2021-45710

Vulnerability identifier: #VU69546

Vulnerability risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-45710

CWE-ID: CWE-362

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
tokio
Universal components / Libraries / Programming Languages & Components

Vendor: tokio-rs

Description

The vulnerability allows a remote attacker to compromise the affected application.

The vulnerability exists due to a race condition. A remote attacker can exploit the race and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

tokio: before 1.8.4, 1.13.1, 1.8.4, 1.8.4

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External links
https://rustsec.org/advisories/RUSTSEC-2021-0124.html
https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/tokio/RUSTSEC-2021-0124.md

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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.