{"api_version":"1","generated_at":"2026-04-23T02:37:19+00:00","cve":"CVE-2022-1834","urls":{"html":"https://cve.report/CVE-2022-1834","api":"https://cve.report/api/cve/CVE-2022-1834.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2022-1834","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-1834"},"summary":{"title":"CVE-2022-1834","description":"When displaying the sender of an email, and the sender name contained the Braille Pattern Blank space character multiple times, Thunderbird would have displayed all the spaces. This could have been used by an attacker to send an email message with the attacker's digital signature, that was shown with an arbitrary sender email address chosen by the attacker. If the sender name started with a false email address, followed by many Braille space characters, the attacker's email address was not visible. Because Thunderbird compared the invisible sender address with the signature's email address, if the signing key or certificate was accepted by Thunderbird, the email was shown as having a valid digital signature. This vulnerability affects Thunderbird < 91.10.","state":"PUBLIC","assigner":"security@mozilla.org","published_at":"2022-12-22 20:15:00","updated_at":"2022-12-29 16:38:00"},"problem_types":["CWE-295"],"metrics":[],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1767816","name":"https://bugzilla.mozilla.org/show_bug.cgi?id=1767816","refsource":"MISC","tags":[],"title":"Access Denied","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.mozilla.org/security/advisories/mfsa2022-22/","name":"https://www.mozilla.org/security/advisories/mfsa2022-22/","refsource":"MISC","tags":[],"title":"Security Vulnerabilities fixed in Thunderbird 91.10 — Mozilla","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-1834","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-1834","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2022","cve_id":"1834","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"mozilla","cpe5":"thunderbird","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2022-1834","qid":"159878","title":"Oracle Enterprise Linux Security Update for thunderbird (ELSA-2022-4891)"},{"cve":"CVE-2022-1834","qid":"159879","title":"Oracle Enterprise Linux Security Update for thunderbird (ELSA-2022-4887)"},{"cve":"CVE-2022-1834","qid":"159948","title":"Oracle Enterprise Linux Security Update for thunderbird (ELSA-2022-4892)"},{"cve":"CVE-2022-1834","qid":"179351","title":"Debian Security Update for thunderbird (DLA 3041-1)"},{"cve":"CVE-2022-1834","qid":"179354","title":"Debian Security Update for thunderbird (DSA 5158-1)"},{"cve":"CVE-2022-1834","qid":"181925","title":"Debian Security Update for thunderbird (CVE-2022-1834)"},{"cve":"CVE-2022-1834","qid":"198859","title":"Ubuntu Security Notification for Thunderbird Vulnerabilities (USN-5512-1)"},{"cve":"CVE-2022-1834","qid":"240402","title":"Red Hat Update for thunderbird (RHSA-2022:4891)"},{"cve":"CVE-2022-1834","qid":"240405","title":"Red Hat Update for thunderbird (RHSA-2022:4892)"},{"cve":"CVE-2022-1834","qid":"240406","title":"Red Hat Update for thunderbird (RHSA-2022:4889)"},{"cve":"CVE-2022-1834","qid":"240407","title":"Red Hat Update for thunderbird (RHSA-2022:4887)"},{"cve":"CVE-2022-1834","qid":"240408","title":"Red Hat Update for thunderbird (RHSA-2022:4890)"},{"cve":"CVE-2022-1834","qid":"257182","title":"CentOS Security Update for thunderbird (CESA-2022:4891)"},{"cve":"CVE-2022-1834","qid":"354001","title":"Amazon Linux Security Advisory for thunderbird : ALAS2-2022-1828"},{"cve":"CVE-2022-1834","qid":"376645","title":"Mozilla Thunderbird Multiple Vulnerabilities (MFSA2022-22)"},{"cve":"CVE-2022-1834","qid":"502380","title":"Alpine Linux Security Update for thunderbird"},{"cve":"CVE-2022-1834","qid":"505448","title":"Alpine Linux Security Update for thunderbird"},{"cve":"CVE-2022-1834","qid":"710585","title":"Gentoo Linux Mozilla Thunderbird Multiple Vulnerabilities (GLSA 202208-14)"},{"cve":"CVE-2022-1834","qid":"753109","title":"SUSE Enterprise Linux Security Update for MozillaThunderbird (SUSE-SU-2022:2062-1)"},{"cve":"CVE-2022-1834","qid":"960141","title":"Rocky Linux Security Update for thunderbird (RLSA-2022:4887)"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2022-1834","ASSIGNER":"security@mozilla.org","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"Mozilla","product":{"product_data":[{"product_name":"Thunderbird","version":{"version_data":[{"version_value":"91.10","version_affected":"<"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Braille space character caused incorrect sender email to be shown for a digitally signed email"}]}]},"references":{"reference_data":[{"url":"https://www.mozilla.org/security/advisories/mfsa2022-22/","refsource":"MISC","name":"https://www.mozilla.org/security/advisories/mfsa2022-22/"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1767816","refsource":"MISC","name":"https://bugzilla.mozilla.org/show_bug.cgi?id=1767816"}]},"description":{"description_data":[{"lang":"eng","value":"When displaying the sender of an email, and the sender name contained the Braille Pattern Blank space character multiple times, Thunderbird would have displayed all the spaces. This could have been used by an attacker to send an email message with the attacker's digital signature, that was shown with an arbitrary sender email address chosen by the attacker. If the sender name started with a false email address, followed by many Braille space characters, the attacker's email address was not visible. Because Thunderbird compared the invisible sender address with the signature's email address, if the signing key or certificate was accepted by Thunderbird, the email was shown as having a valid digital signature. This vulnerability affects Thunderbird < 91.10."}]}},"nvd":{"publishedDate":"2022-12-22 20:15:00","lastModifiedDate":"2022-12-29 16:38:00","problem_types":["CWE-295"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.8,"impactScore":3.6}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*","versionEndExcluding":"91.10","cpe_name":[]}]}]}},"legacy_mitre":{"record":null,"notes":[]}}}