Denial of service in Go Net



| Updated: 2022-07-22
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-33194
CWE-ID CWE-835
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Go Net
Web applications / Modules and components for CMS

Vendor Google

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Infinite loop

EUVDB-ID: #VU65693

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-33194

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

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

The vulnerability exists due to infinite loop. A remote attacker can pass crafted ParseFragment  input to the application, consume all available system resources and cause denial of service conditions.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Go Net: before 0.0.0-20210520170846-37e1c6afe023

CPE2.3 External links

https://groups.google.com/g/golang-announce/c/wPunbCPkWUg
https://github.com/golang/net/commit/37e1c6afe02340126705deced573a85ab75209d7
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4CHKSFMHZVOBCZSSVRE3UEYNKARTBMTM/


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.



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