The package github.com/pires/go-proxyproto before 0.5.0 are vulnerable to Denial of Service (DoS) via the parseVersion1() function. The reader in this package is a default bufio.Reader wrapping a net.Conn. It will read from the connection until it finds a newline. Since no limits are implemented in the code, a deliberately malformed V1 header could be used to exhaust memory in a server process using this code - and create a DoS. This can be exploited by sending a stream starting with PROXY and continuing to send data (which does not contain a newline) until the target stops acknowledging. The risk here is small, because only trusted sources should be allowed to send proxy protocol headers.
References
Configurations
History
21 Nov 2024, 05:51
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : 4.0
v3 : 4.4 |
| References | () https://github.com/pires/go-proxyproto/commit/7f48261db810703d173f27f3309a808cc2b49b8b - Patch, Third Party Advisory | |
| References | () https://github.com/pires/go-proxyproto/issues/69 - Third Party Advisory | |
| References | () https://github.com/pires/go-proxyproto/pull/71 - Patch, Third Party Advisory | |
| References | () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4BNVGJMVI3ZTZ675EFPUHPGXCKCGSX46/ - | |
| References | () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C36IBVOZXRTWM7MGTRUTOM56P5RR74VU/ - | |
| References | () https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMPIRESGOPROXYPROTO-1081577 - Third Party Advisory |
07 Nov 2023, 03:30
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
|
Information
Published : 2021-03-08 05:15
Updated : 2024-11-21 05:51
NVD link : CVE-2021-23351
Mitre link : CVE-2021-23351
CVE.ORG link : CVE-2021-23351
JSON object : View
Products Affected
fedoraproject
- fedora
go-proxyproto_project
- go-proxyproto
CWE