Source: golang-github-pires-go-proxyproto Version: 0.4.1-1 Severity: important Tags: security upstream Forwarded: https://github.com/pires/go-proxyproto/issues/69 X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for golang-github-pires-go-proxyproto. CVE-2021-23351[0]: | 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. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2021-23351 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23351 [1] https://github.com/pires/go-proxyproto/issues/69 [2] https://github.com/pires/go-proxyproto/commit/7f48261db810703d173f27f3309a808cc2b49b8b [3] https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMPIRESGOPROXYPROTO-1081577 Regards, Salvatore
