CVE-2017-7805

{"containers": {"cna": {"affected": [{"product": "Firefox", "vendor": "Mozilla", "versions": [{"lessThan": "56", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Firefox ESR", "vendor": "Mozilla", "versions": [{"lessThan": "52.4", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Thunderbird", "vendor": "Mozilla", "versions": [{"lessThan": "52.4", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "datePublic": "2017-09-28T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "During TLS 1.2 exchanges, handshake hashes are generated which point to a message buffer. This saved data is used for later messages but in some cases, the handshake transcript can exceed the space available in the current buffer, causing the allocation of a new buffer. This leaves a pointer pointing to the old, freed buffer, resulting in a use-after-free when handshake hashes are then calculated afterwards. This can result in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4."}], "problemTypes": [{"descriptions": [{"description": "Use-after-free in TLS 1.2 generating handshake hashes", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2018-10-17T00:57:01.000Z", "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla"}, "references": [{"name": "RHSA-2017:2832", "tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2017:2832"}, {"name": "101059", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/101059"}, {"name": "[debian-lts-announce] 20171101 [SECURITY] [DLA 1153-1] icedove/thunderbird security update", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-22/"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1377618"}, {"name": "1039465", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id/1039465"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-21/"}, {"name": "DSA-4014", "tags": ["vendor-advisory", "x_refsource_DEBIAN"], "url": "https://www.debian.org/security/2017/dsa-4014"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-23/"}, {"name": "DSA-3998", "tags": ["vendor-advisory", "x_refsource_DEBIAN"], "url": "https://www.debian.org/security/2017/dsa-3998"}, {"name": "DSA-3987", "tags": ["vendor-advisory", "x_refsource_DEBIAN"], "url": "https://www.debian.org/security/2017/dsa-3987"}, {"name": "GLSA-201803-14", "tags": ["vendor-advisory", "x_refsource_GENTOO"], "url": "https://security.gentoo.org/glsa/201803-14"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@mozilla.org", "ID": "CVE-2017-7805", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Firefox", "version": {"version_data": [{"version_affected": "<", "version_value": "56"}]}}, {"product_name": "Firefox ESR", "version": {"version_data": [{"version_affected": "<", "version_value": "52.4"}]}}, {"product_name": "Thunderbird", "version": {"version_data": [{"version_affected": "<", "version_value": "52.4"}]}}]}, "vendor_name": "Mozilla"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "During TLS 1.2 exchanges, handshake hashes are generated which point to a message buffer. 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This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Use-after-free in TLS 1.2 generating handshake hashes"}]}]}, "references": {"reference_data": [{"name": "RHSA-2017:2832", "refsource": "REDHAT", "url": "https://access.redhat.com/errata/RHSA-2017:2832"}, {"name": "101059", "refsource": "BID", "url": "http://www.securityfocus.com/bid/101059"}, {"name": "[debian-lts-announce] 20171101 [SECURITY] [DLA 1153-1] icedove/thunderbird security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html"}, {"name": "https://www.mozilla.org/security/advisories/mfsa2017-22/", "refsource": "CONFIRM", "url": "https://www.mozilla.org/security/advisories/mfsa2017-22/"}, {"name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1377618", "refsource": "CONFIRM", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1377618"}, {"name": "1039465", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1039465"}, {"name": "https://www.mozilla.org/security/advisories/mfsa2017-21/", "refsource": "CONFIRM", "url": "https://www.mozilla.org/security/advisories/mfsa2017-21/"}, {"name": "DSA-4014", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2017/dsa-4014"}, {"name": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html", "refsource": "CONFIRM", "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"}, {"name": "https://www.mozilla.org/security/advisories/mfsa2017-23/", "refsource": "CONFIRM", "url": "https://www.mozilla.org/security/advisories/mfsa2017-23/"}, {"name": "DSA-3998", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2017/dsa-3998"}, {"name": "DSA-3987", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2017/dsa-3987"}, {"name": "GLSA-201803-14", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/201803-14"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T16:12:28.369Z"}, "title": "CVE Program Container", "references": [{"name": "RHSA-2017:2832", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"], "url": "https://access.redhat.com/errata/RHSA-2017:2832"}, {"name": "101059", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/101059"}, {"name": "[debian-lts-announce] 20171101 [SECURITY] [DLA 1153-1] icedove/thunderbird security update", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-22/"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1377618"}, {"name": "1039465", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://www.securitytracker.com/id/1039465"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-21/"}, {"name": "DSA-4014", "tags": ["vendor-advisory", "x_refsource_DEBIAN", "x_transferred"], "url": "https://www.debian.org/security/2017/dsa-4014"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-23/"}, {"name": "DSA-3998", "tags": ["vendor-advisory", "x_refsource_DEBIAN", "x_transferred"], "url": "https://www.debian.org/security/2017/dsa-3998"}, {"name": "DSA-3987", "tags": ["vendor-advisory", "x_refsource_DEBIAN", "x_transferred"], "url": "https://www.debian.org/security/2017/dsa-3987"}, {"name": "GLSA-201803-14", "tags": ["vendor-advisory", "x_refsource_GENTOO", "x_transferred"], "url": "https://security.gentoo.org/glsa/201803-14"}]}]}, "cveMetadata": {"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "assignerShortName": "mozilla", "cveId": "CVE-2017-7805", "datePublished": "2018-06-11T21:00:00.000Z", "dateReserved": "2017-04-12T00:00:00.000Z", "dateUpdated": "2024-08-05T16:12:28.369Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Firefox", "vendor": "Mozilla", "versions": [{"lessThan": "56", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Firefox ESR", "vendor": "Mozilla", "versions": [{"lessThan": "52.4", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Thunderbird", "vendor": "Mozilla", "versions": [{"lessThan": "52.4", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@mozilla.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:52.4.0:*:*:*:*:*:*:*", "matchCriteriaId": "147EE39E-C1BB-4793-8932-D474FE8C89DB", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:firefox:56.0:*:*:*:*:*:*:*", "matchCriteriaId": "4EE4FDF7-3856-4D26-A4F3-DDD5D18DE940", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:thunderbird:52.4.0:*:*:*:*:*:*:*", "matchCriteriaId": "B65D17DC-9741-4A1C-A059-FF59F4429BA6", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*", "matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "During TLS 1.2 exchanges, handshake hashes are generated which point to a message buffer. This saved data is used for later messages but in some cases, the handshake transcript can exceed the space available in the current buffer, causing the allocation of a new buffer. This leaves a pointer pointing to the old, freed buffer, resulting in a use-after-free when handshake hashes are then calculated afterwards. This can result in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4."}, {"lang": "es", "value": "Durante los intercambios TLS 1.2, los hashes de los handshakes se generan apuntando a un b\u00fafer de mensaje. Estos datos guardados se utilizan para futuros mensajes pero, en determinados casos, la transcripci\u00f3n del handshake puede exceder el espacio disponible en el b\u00fafer actual, provocando la asignaci\u00f3n de un nuevo b\u00fafer. Esto deja al puntero apuntando al b\u00fafer antiguo liberado, resultando en una condici\u00f3n de uso de memoria previamente liberada cuando los hashes del handshake se calculan posteriormente. Esto puede resultar en un cierre inesperado explotable. Esta vulnerabilidad afecta a las versiones anteriores a la 56 de Firefox, las versiones anteriores a la 52.4 de Firefox ESR y las versiones anteriores a la 52.4 de Thunderbird."}], "id": "CVE-2017-7805", "lastModified": "2026-06-17T01:25:13.830", "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}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-06-11T21:29:10.047", "references": [{"source": "security@mozilla.org", "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/101059"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1039465"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2832"}, {"source": "security@mozilla.org", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1377618"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/201803-14"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-3987"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-3998"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-4014"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-21/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-22/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-23/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/101059"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1039465"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2832"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1377618"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/201803-14"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-3987"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-3998"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-4014"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-21/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-22/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-23/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Martin Thomson as the original reporter.", "affected_release": [{"advisory": "RHSA-2017:2832", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "nss-0:3.28.4-4.el6_9", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2017-09-28T00:00:00Z"}, {"advisory": "RHSA-2017:2832", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "nss-0:3.28.4-12.el7_4", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2017-09-28T00:00:00Z"}], "bugzilla": {"description": "nss: Potential use-after-free in TLS 1.2 server when verifying client authentication", "id": "1471171", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1471171"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["During TLS 1.2 exchanges, handshake hashes are generated which point to a message buffer. This saved data is used for later messages but in some cases, the handshake transcript can exceed the space available in the current buffer, causing the allocation of a new buffer. This leaves a pointer pointing to the old, freed buffer, resulting in a use-after-free when handshake hashes are then calculated afterwards. This can result in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.", "A use-after-free flaw was found in the TLS 1.2 implementation in the NSS library when client authentication was used. A malicious client could use this flaw to cause an application compiled against NSS to crash or, potentially, execute arbitrary code with the permission of the user running the application."], "name": "CVE-2017-7805", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "nss", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2017-09-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-7805\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-7805"], "threat_severity": "Important"}

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