Denial of service in Gorilla Websocket



| Updated: 2021-02-25
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-27813
CWE-ID CWE-190
Exploitation vector Network
Public exploit N/A
Vulnerable software
 websocket
Universal components / Libraries / Libraries used by multiple products

Vendor gorilla

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Integer overflow

EUVDB-ID: #VU50957

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-2020-27813

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow when processing frames received via a websocket connection. A remote attacker can pass specially crafted data to the application, trigger integer overflow and perform a denial of service (DoS) attack.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

websocket: 1.4.0

CPE2.3 External links

https://bugzilla.redhat.com/show_bug.cgi?id=1902111
https://github.com/gorilla/websocket/security/advisories/GHSA-jf24-p9p9-4rjh
https://lists.debian.org/debian-lts-announce/2021/01/msg00008.html


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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