Vulnerability · Published Dec 2, 2020 · Assigned by redhat
CVE-2020-27813
High 7.5
In plain English
A high-severity integer overflow in golang-github-gorilla-websocket. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 82% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.2%top 17.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/gorilla/websocket | 1.4.1 | GHSA-3xh2-74w9-5vxm |
| Go | github.com/gorilla/websocket | 1.4.1 | GO-2020-0019 |
| Ubuntu:22.04:LTS | golang-websocket | no fix listed | UBUNTU-CVE-2020-27813 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | golang-github-gorilla-websocket | github.com/gorilla/websocket v1.4.1 |
Weakness: CWE-190
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1902111
- https://github.com/gorilla/websocket/security/advisories/GHSA-jf24-p9p9-4rjh
- [debian-lts-announce] 20210106 [SECURITY] [DLA 2520-1] golang-websocket security update mailing-list
- [debian-lts-announce] 20230513 [SECURITY] [DLA 3420-1] golang-websocket security update mailing-list