CVE-2020-11653

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2020-11653", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2024-08-04T11:35:13.694Z", "dateReserved": "2020-04-08T00:00:00.000Z", "datePublished": "2020-04-08T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2022-11-28T00:00:00.000Z"}, "descriptions": [{"lang": "en", "value": "An issue was discovered in Varnish Cache before 6.0.6 LTS, 6.1.x and 6.2.x before 6.2.3, and 6.3.x before 6.3.2. It occurs when communication with a TLS termination proxy uses PROXY version 2. There can be an assertion failure and daemon restart, which causes a performance loss."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://varnish-cache.org/security/VSV00005.html#vsv00005"}, {"name": "openSUSE-SU-2020:0819", "tags": ["vendor-advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00031.html"}, {"name": "openSUSE-SU-2020:0808", "tags": ["vendor-advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00026.html"}, {"name": "[debian-lts-announce] 20221127 [SECURITY] [DLA 3208-1] varnish security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00036.html"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T11:35:13.694Z"}, "title": "CVE Program Container", "references": [{"url": "https://varnish-cache.org/security/VSV00005.html#vsv00005", "tags": ["x_transferred"]}, {"name": "openSUSE-SU-2020:0819", "tags": ["vendor-advisory", "x_transferred"], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00031.html"}, {"name": "openSUSE-SU-2020:0808", "tags": ["vendor-advisory", "x_transferred"], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00026.html"}, {"name": "[debian-lts-announce] 20221127 [SECURITY] [DLA 3208-1] varnish security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00036.html"}]}]}}

{}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:varnish-cache:varnish_cache:*:*:*:*:-:*:*:*", "matchCriteriaId": "7F9639E7-E2B5-4043-BCEE-76287138C056", "versionEndExcluding": "6.2.3", "versionStartIncluding": "6.1.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:varnish-cache:varnish_cache:*:*:*:*:-:*:*:*", "matchCriteriaId": "6916B62C-73A4-48F9-A34F-E5556F185490", "versionEndExcluding": "6.3.2", "versionStartIncluding": "6.3.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:varnish-software:varnish_cache:*:*:*:*:lts:*:*:*", "matchCriteriaId": "26687AFE-58D3-47D7-8079-D2E0E9EF470B", "versionEndExcluding": "6.0.6", "versionStartIncluding": "6.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*", "matchCriteriaId": "40513095-7E6E-46B3-B604-C926F1BA3568", "vulnerable": true}, {"criteria": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*", "matchCriteriaId": "B620311B-34A3-48A6-82DF-6F078D7A4493", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in Varnish Cache before 6.0.6 LTS, 6.1.x and 6.2.x before 6.2.3, and 6.3.x before 6.3.2. It occurs when communication with a TLS termination proxy uses PROXY version 2. There can be an assertion failure and daemon restart, which causes a performance loss."}, {"lang": "es", "value": "Se detect\u00f3 un problema en Varnish Cache versiones anteriores a 6.0.6 LTS, versiones 6.1.x y versiones 6.2.x anteriores a 6.2.3 y versiones 6.3.x anteriores a 6.3.2. Se presenta cuando la comunicaci\u00f3n con un proxy de terminaci\u00f3n TLS usa PROXY versi\u00f3n 2. Se puede presentar un fallo de aserci\u00f3n y un reinicio del demonio, lo que causa una p\u00e9rdida de rendimiento."}], "id": "CVE-2020-11653", "lastModified": "2026-06-17T02:50:33.770", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-04-08T23:15:12.730", "references": [{"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00026.html"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00031.html"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00036.html"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://varnish-cache.org/security/VSV00005.html#vsv00005"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00026.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00031.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00036.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://varnish-cache.org/security/VSV00005.html#vsv00005"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-617"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2020:4756", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "varnish:6-8030020200530080205.30b713e6", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-11-04T00:00:00Z"}], "bugzilla": {"description": "varnish: remote clients may cause Varnish to assert and restart which could result in DoS", "id": "1813867", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1813867"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-400", "details": ["An issue was discovered in Varnish Cache before 6.0.6 LTS, 6.1.x and 6.2.x before 6.2.3, and 6.3.x before 6.3.2. It occurs when communication with a TLS termination proxy uses PROXY version 2. There can be an assertion failure and daemon restart, which causes a performance loss."], "mitigation": {"lang": "en:us", "value": "An user can mitigate the problem by setting the proxy protocol to version 1 on the TLS Proxy side, as this flaw only affects the proxy protocol version 2."}, "name": "CVE-2020-11653", "package_state": [{"cpe": "cpe:/a:redhat:rhel_software_collections:3", "fix_state": "Will not fix", "package_name": "rh-varnish5-varnish", "product_name": "Red Hat Software Collections"}, {"cpe": "cpe:/a:redhat:rhel_software_collections:3", "fix_state": "Affected", "package_name": "rh-varnish6-varnish", "product_name": "Red Hat Software Collections"}], "public_date": "2020-02-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-11653\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-11653\nhttps://varnish-cache.org/security/VSV00005.html#vsv00005"], "threat_severity": "Moderate"}

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