Integer overflow in Gorillatoolkit Websocket
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.
Vulnerability class: Integer Overflow
EPSS: 0.021 (80.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Gorillatoolkit Websocket
- Debian Debian_linux — versions 9.0
- N/a Golang-github-gorilla-websocket — versions github.com/gorilla/websocket v1.4.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Third Party Advisory, Issue Tracking)
- secalert@redhat.com (Third Party Advisory)
- secalert@redhat.com (mailing-list, Mailing List, Third Party Advisory)
- secalert@redhat.com (mailing-list)
Frequently asked questions
- What is CVE-2020-27813?
- CVE-2020-27813 is a high-severity vulnerability in Gorillatoolkit Websocket, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2020-12-02.
- How severe is CVE-2020-27813?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-27813 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.