Vulnerability identifier: #VU68514

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-39278

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Istio
Web applications / Other software

Vendor: Istio

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

This vulnerability is caused by usage of an affected version of Go (#VU68390, CVE-2022-41715).

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Istio: 0.1 - 0.1.6, 0.2 - 0.2.12, 0.3 - 0.3.0, 0.4 - 0.4.0, 0.5 - 0.5.1, 0.6 - 0.6.0, 0.7 - 0.7.1, 0.8 - 0.8.0, 1.0 - 1.0.9, 1.1 - 1.15.1, 1.2 - 1.2.10, 1.3 - 1.3.8, 1.4 - 1.4.10, 1.5.0 - 1.5.10, 1.6.0 - 1.6.14, 1.7.0 - 1.7.8, 1.8.0 - 1.8.6, 1.9.0 - 1.9.9

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External links
http://istio.io/latest/news/releases/1.13.x/announcing-1.13.9/
http://github.com/istio/istio/security/advisories/GHSA-86vr-4wcv-mm9w
http://istio.io/latest/news/releases/1.15.x/announcing-1.15.2/
http://istio.io/news/releases/1.14.x/announcing-1.14.5/

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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.