{"api_version":"1","generated_at":"2026-04-24T00:08:01+00:00","cve":"CVE-2017-7805","urls":{"html":"https://cve.report/CVE-2017-7805","api":"https://cve.report/api/cve/CVE-2017-7805.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2017-7805","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-7805"},"summary":{"title":"CVE-2017-7805","description":"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.","state":"PUBLIC","assigner":"security@mozilla.org","published_at":"2018-06-11 21:29:00","updated_at":"2018-10-17 01:30:00"},"problem_types":["CWE-416"],"metrics":[],"references":[{"url":"http://www.securitytracker.com/id/1039465","name":"1039465","refsource":"SECTRACK","tags":["Third Party Advisory","VDB Entry"],"title":"Mozilla Firefox Multiple Bugs Let Remote Users Spoof URLs, Conduct Cross-Site Scripting Attacks, Obtain Potentially Sensitive Information, and Execute Arbitrary Code - SecurityTracker","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.mozilla.org/security/advisories/mfsa2017-21/","name":"https://www.mozilla.org/security/advisories/mfsa2017-21/","refsource":"CONFIRM","tags":["Vendor Advisory"],"title":"Security vulnerabilities fixed in Firefox 56 — Mozilla","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/errata/RHSA-2017:2832","name":"RHSA-2017:2832","refsource":"REDHAT","tags":["Third Party Advisory"],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.debian.org/security/2017/dsa-3998","name":"DSA-3998","refsource":"DEBIAN","tags":["Third Party Advisory"],"title":"Debian -- Security Information -- DSA-3998-1 nss","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.debian.org/security/2017/dsa-4014","name":"DSA-4014","refsource":"DEBIAN","tags":["Third Party Advisory"],"title":"Debian -- Security Information -- DSA-4014-1 thunderbird","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.mozilla.org/security/advisories/mfsa2017-22/","name":"https://www.mozilla.org/security/advisories/mfsa2017-22/","refsource":"CONFIRM","tags":["Vendor Advisory"],"title":"Security vulnerabilities fixed in Firefox ESR 52.4 — Mozilla","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html","name":"[debian-lts-announce] 20171101 [SECURITY] [DLA 1153-1] icedove/thunderbird security update","refsource":"MLIST","tags":["Third Party Advisory"],"title":"[SECURITY] [DLA 1153-1] icedove/thunderbird security update","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.mozilla.org/security/advisories/mfsa2017-23/","name":"https://www.mozilla.org/security/advisories/mfsa2017-23/","refsource":"CONFIRM","tags":["Vendor Advisory"],"title":"Security vulnerabilities fixed in Thunderbird 52.4 — Mozilla","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.debian.org/security/2017/dsa-3987","name":"DSA-3987","refsource":"DEBIAN","tags":["Third Party Advisory"],"title":"Debian -- Security Information -- DSA-3987-1 firefox-esr","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security.gentoo.org/glsa/201803-14","name":"GLSA-201803-14","refsource":"GENTOO","tags":["Third Party Advisory"],"title":"Mozilla Thunderbird: Multiple vulnerabilities (GLSA 201803-14) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securityfocus.com/bid/101059","name":"101059","refsource":"BID","tags":["Third Party Advisory","VDB Entry"],"title":"Mozilla Firefox and Firefox ESR Multiple Security Vulnerabilities","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html","name":"http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html","refsource":"CONFIRM","tags":[],"title":"CPU Oct 2018","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1377618","name":"https://bugzilla.mozilla.org/show_bug.cgi?id=1377618","refsource":"CONFIRM","tags":["Issue Tracking","Vendor Advisory"],"title":"1377618 - (CVE-2017-7805) Potential UAF in TLS 1.2 server when verifying client authentication","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-7805","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-7805","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2017","cve_id":"7805","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"7.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2017","cve_id":"7805","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"8.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2017","cve_id":"7805","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2017","cve_id":"7805","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"7.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2017","cve_id":"7805","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"8.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2017","cve_id":"7805","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2017","cve_id":"7805","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"firefox","cpe6":"56.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2017","cve_id":"7805","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"firefox","cpe6":"56.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2017","cve_id":"7805","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"firefox_esr","cpe6":"52.4.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2017","cve_id":"7805","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"firefox_esr","cpe6":"52.4.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2017","cve_id":"7805","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"52.4.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2017","cve_id":"7805","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"52.4.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2017-7805","qid":"378166","title":"Virtuozzo Linux Security Update for nss-tools (VZLSA-2017:2832)"},{"cve":"CVE-2017-7805","qid":"710287","title":"Gentoo Linux Mozilla Firefox Multiple Vulnerabilities (GLSA 201802-03)"},{"cve":"CVE-2017-7805","qid":"710303","title":"Gentoo Linux Mozilla Thunderbird Multiple Vulnerabilities (GLSA 201803-14)"}]},"source_records":{"cve_program":{"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. 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."}]},"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"}]}},"nvd":{"publishedDate":"2018-06-11 21:29:00","lastModifiedDate":"2018-10-17 01:30:00","problem_types":["CWE-416"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":5},"severity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:mozilla:firefox:56.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:mozilla:firefox_esr:52.4.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:mozilla:thunderbird:52.4.0:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2017","CveId":"7805","Ordinal":"104619","Title":"CVE-2017-7805","CVE":"CVE-2017-7805","Year":"2017"},"notes":[{"CveYear":"2017","CveId":"7805","Ordinal":"1","NoteData":"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.","Type":"Description","Title":null},{"CveYear":"2017","CveId":"7805","Ordinal":"2","NoteData":"2018-06-11","Type":"Other","Title":"Published"},{"CveYear":"2017","CveId":"7805","Ordinal":"3","NoteData":"2018-10-16","Type":"Other","Title":"Modified"}]}}}