Denial of service in Go programming language



Published: 2021-05-27 | Updated: 2021-07-15
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-31525
CWE-ID CWE-674
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Go programming language
Universal components / Libraries / Scripting languages

Vendor Google

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Uncontrolled Recursion

EUVDB-ID: #VU54910

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-31525

CWE-ID:

Exploit availability:

Description

The vulnerability allows a remote attacker to perform a DoS attack.

The vulnerability exists due to uncontrolled recursion when processing HTTP headers. A remote attacker can send a large header to ReadRequest or ReadResponse and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Go programming language: 1.15 - 1.16.3

Fixed software versions

CPE2.3 External links

http://github.com/golang/go/issues/45710
http://groups.google.com/g/golang-announce/c/cu9SP4eSXMc
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ISRZZ6NY5R2TBYE72KZFOCO25TEUQTBF/


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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