Vulnerability · Published Jul 21, 2021 · Assigned by snyk
CVE-2021-23409Denial of Service (DoS)
High 7.5
In plain English
A high-severity security flaw in github.com/pires/go-proxyproto. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 77% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.6%top 23.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
The package github.com/pires/go-proxyproto before 0.6.0 are vulnerable to Denial of Service (DoS) via creating connections without the proxy protocol header.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | golang-github-pires-go-proxyproto | 0.4.2-2 | DEBIAN-CVE-2021-23409 |
| Debian:13 | golang-github-pires-go-proxyproto | 0.4.2-2 | DEBIAN-CVE-2021-23409 |
| Debian:14 | golang-github-pires-go-proxyproto | 0.4.2-2 | DEBIAN-CVE-2021-23409 |
| Go | github.com/pires/go-proxyproto | 0.6.1 | GHSA-xcf7-q56x-78gh |
| Go | github.com/pires/go-proxyproto | 0.6.1 | GO-2022-0233 |
| Ubuntu:22.04:LTS | golang-github-pires-go-proxyproto | no fix listed | UBUNTU-CVE-2021-23409 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | github.com/pires/go-proxyproto | unspecified – before 0.6.0 |
References
- https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMPIRESGOPROXYPROTO-1316439 x_refsource_MISC
- https://github.com/pires/go-proxyproto/releases/tag/v0.6.0 x_refsource_MISC
- https://github.com/pires/go-proxyproto/issues/65 x_refsource_MISC
- https://github.com/pires/go-proxyproto/pull/74 x_refsource_MISC
- https://github.com/pires/go-proxyproto/pull/74/commits/cdc63867da24fc609b727231f682670d0d1cd346 x_refsource_MISC