Vulnerability Report

CVE-2020-27813

Title: HTTP Server Websocket Integer Overflow DoS

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2020-27813.

CWE Category CWE-190
Published Date Dec 02, 2020
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 7.5 CVSS v3.1
Exploit Probability (EPSS)
0.18%

Vulnerability Summary

CVE-2020-27813: An integer overflow vulnerability exists with the length of websocket frames received via a websocket connection. An attacker would use this flaw to cause a denial of service attack on an HTTP Server allowing websocket connections.

Impacted Vendors

G
gorillatoolkit 1
F
fastify 1

Reference 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 https://lists.debian.org/debian-lts-announce/2023/05/msg00012.html 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 https://lists.debian.org/debian-lts-announce/2023/05/msg00012.html
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
5.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-27813 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.