CVE-2016-4554

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"http://www.debian.org/security/2016/dsa-3625"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2016-4554", "datePublished": "2016-05-10T19:00:00.000Z", "dateReserved": "2016-05-06T00:00:00.000Z", "dateUpdated": "2024-08-06T00:32:25.859Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"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:o:oracle:linux:6:*:*:*:*:*:*:*", "matchCriteriaId": "CC7A498A-A669-4C42-8134-86103C799D13", "vulnerable": true}, {"criteria": "cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*", "matchCriteriaId": "104DA87B-DEE4-4262-AE50-8E6BC43B228B", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*", "matchCriteriaId": "C563F5CC-F4FB-4440-981E-EA2C003A639C", "versionEndIncluding": "3.5.17", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*", "matchCriteriaId": "B6B7CAD7-9D4E-4FDB-88E3-1E583210A01F", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*", "matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*", "matchCriteriaId": "E88A537F-F4D0-46B9-9E37-965233C2A355", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "mime_header.cc in Squid before 3.5.18 allows remote attackers to bypass intended same-origin restrictions and possibly conduct cache-poisoning attacks via a crafted HTTP Host header, aka a \"header smuggling\" issue."}, {"lang": "es", "value": "mime_header.cc en Squid en versiones anteriores a 3.5.18 permite a atacantes remotos eludir restricciones destinadas al mismo origen y posiblemente llevar a cabo ataques de envenenamiento de cach\u00e9 a trav\u00e9s de una cabecera HTTP Host manipulada, tambi\u00e9n conocido como un problema \"contrabando de peticiones\"."}], "id": "CVE-2016-4554", "lastModified": "2026-06-17T00:47:46.273", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 4.0, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2016-05-10T19:59:01.307", "references": [{"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html"}, {"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html"}, {"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html"}, {"source": "cve@mitre.org", "url": "http://www.debian.org/security/2016/dsa-3625"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.securitytracker.com/id/1035769"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": 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{"source": "cve@mitre.org", "url": "https://access.redhat.com/errata/RHSA-2016:1140"}, {"source": "cve@mitre.org", "url": "https://security.gentoo.org/glsa/201607-01"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.debian.org/security/2016/dsa-3625"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://www.securitytracker.com/id/1035769"}, 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"url": "http://www.ubuntu.com/usn/USN-2995-1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://access.redhat.com/errata/RHSA-2016:1138"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://access.redhat.com/errata/RHSA-2016:1139"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://access.redhat.com/errata/RHSA-2016:1140"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.gentoo.org/glsa/201607-01"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-345"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2016:1138", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "squid-7:3.1.23-16.el6_8.4", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2016-05-31T00:00:00Z"}, {"advisory": "RHSA-2016:1140", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "squid34-7:3.4.14-9.el6_8.3", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2016-05-31T00:00:00Z"}, {"advisory": "RHSA-2016:1139", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "squid-7:3.3.8-26.el7_2.3", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2016-05-31T00:00:00Z"}], "bugzilla": {"description": "squid: Header Smuggling issue in HTTP Request processing", "id": "1334241", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1334241"}, "csaw": false, "cvss": {"cvss_base_score": "4.0", "cvss_scoring_vector": "AV:N/AC:H/Au:N/C:N/I:P/A:P", "status": "verified"}, "cwe": "CWE-20", "details": ["mime_header.cc in Squid before 3.5.18 allows remote attackers to bypass intended same-origin restrictions and possibly conduct cache-poisoning attacks via a crafted HTTP Host header, aka a \"header smuggling\" issue.", "An input validation flaw was found in Squid's mime_get_header_field() function, which is used to search for headers within HTTP requests. An attacker could send an HTTP request from the client side with specially crafted header Host header that bypasses same-origin security protections, causing Squid operating as interception or reverse-proxy to contact the wrong origin server. It could also be used for cache poisoning for client not following RFC 7230."], "name": "CVE-2016-4554", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "squid", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2016-05-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-4554\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-4554\nhttp://www.squid-cache.org/Advisories/SQUID-2016_8.txt"], "threat_severity": "Moderate"}

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