{ "containers": { "cna": { "affected": [ { "product": "github.com/pires/go-proxyproto", "vendor": "n/a", "versions": [ { "lessThan": "0.5.0", "status": "affected", "version": "unspecified", "versionType": "custom" } ] } ], "credits": [ { "lang": "en", "value": "Iestyn Elfick" } ], "datePublic": "2021-03-08T00:00:00", "descriptions": [ { "lang": "en", "value": "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." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "description": "Denial of Service (DoS)", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2021-03-19T22:06:33", "orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730", "shortName": "snyk" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMPIRESGOPROXYPROTO-1081577" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/pires/go-proxyproto/pull/71" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/pires/go-proxyproto/issues/69" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/pires/go-proxyproto/commit/7f48261db810703d173f27f3309a808cc2b49b8b" }, { "name": "FEDORA-2021-e01c1fe4cc", "tags": [ "vendor-advisory", "x_refsource_FEDORA" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4BNVGJMVI3ZTZ675EFPUHPGXCKCGSX46/" }, { "name": "FEDORA-2021-f5fcd9b0c1", "tags": [ "vendor-advisory", "x_refsource_FEDORA" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C36IBVOZXRTWM7MGTRUTOM56P5RR74VU/" } ], "title": "Denial of Service (DoS)", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "report@snyk.io", "DATE_PUBLIC": "2021-03-08T04:40:53.457117Z", "ID": "CVE-2021-23351", "STATE": "PUBLIC", "TITLE": "Denial of Service (DoS)" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "github.com/pires/go-proxyproto", "version": { "version_data": [ { "version_affected": "<", "version_value": "0.5.0" } ] } } ] }, "vendor_name": "n/a" } ] } }, "credit": [ { "lang": "eng", "value": "Iestyn Elfick" } ], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "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." } ] }, "impact": { "cvss": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "Denial of Service (DoS)" } ] } ] }, "references": { "reference_data": [ { "name": "https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMPIRESGOPROXYPROTO-1081577", "refsource": "MISC", "url": "https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMPIRESGOPROXYPROTO-1081577" }, { "name": "https://github.com/pires/go-proxyproto/pull/71", "refsource": "MISC", "url": "https://github.com/pires/go-proxyproto/pull/71" }, { "name": "https://github.com/pires/go-proxyproto/issues/69", "refsource": "MISC", "url": "https://github.com/pires/go-proxyproto/issues/69" }, { "name": "https://github.com/pires/go-proxyproto/commit/7f48261db810703d173f27f3309a808cc2b49b8b", "refsource": "MISC", "url": "https://github.com/pires/go-proxyproto/commit/7f48261db810703d173f27f3309a808cc2b49b8b" }, { "name": "FEDORA-2021-e01c1fe4cc", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4BNVGJMVI3ZTZ675EFPUHPGXCKCGSX46/" }, { "name": "FEDORA-2021-f5fcd9b0c1", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C36IBVOZXRTWM7MGTRUTOM56P5RR74VU/" } ] } } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T19:05:55.668Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMPIRESGOPROXYPROTO-1081577" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/pires/go-proxyproto/pull/71" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/pires/go-proxyproto/issues/69" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/pires/go-proxyproto/commit/7f48261db810703d173f27f3309a808cc2b49b8b" }, { "name": "FEDORA-2021-e01c1fe4cc", "tags": [ "vendor-advisory", "x_refsource_FEDORA", "x_transferred" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4BNVGJMVI3ZTZ675EFPUHPGXCKCGSX46/" }, { "name": "FEDORA-2021-f5fcd9b0c1", "tags": [ "vendor-advisory", "x_refsource_FEDORA", "x_transferred" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C36IBVOZXRTWM7MGTRUTOM56P5RR74VU/" } ] } ] }, "cveMetadata": { "assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730", "assignerShortName": "snyk", "cveId": "CVE-2021-23351", "datePublished": "2021-03-08T04:45:23.830953Z", "dateReserved": "2021-01-08T00:00:00", "dateUpdated": "2024-09-17T01:31:07.953Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }