#VU68779 Improper Validation of Array Index in Go Text


Published: 2022-10-26

Vulnerability identifier: #VU68779

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-28851, CVE-2020-28852

CWE-ID: CWE-129

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Go Text
Universal components / Libraries / Libraries used by multiple products

Vendor: Go

Description

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

The vulnerability exists due to improper validation of array index in language.ParseAcceptLanguage while processing a BCP 47 tag. A remote attacker can send a specially crafted HTTP request containing a malformed HTTP Accept-Language header and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Go Text: 0.1.0 - 0.3.5


External links
http://github.com/golang/go/issues/42536
http://security.netapp.com/advisory/ntap-20210212-0004/
http://github.com/golang/go/issues/42535


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.


Latest bulletins with this vulnerability