CVE-2021-31855

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-31855", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2024-08-03T23:10:30.742Z", "dateReserved": "2021-04-28T00:00:00.000Z", "datePublished": "2021-06-02T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2023-11-08T22:57:46.037Z"}, "descriptions": [{"lang": "en", "value": "KDE Messagelib through 5.17.0 reveals cleartext of encrypted messages in some situations. Deleting an attachment of a decrypted encrypted message stored on a remote server (e.g., an IMAP server) causes KMail to upload the decrypted content of the message to the remote server. With a crafted message, a user could be tricked into decrypting an encrypted message and then deleting an attachment attached to this message. If the attacker has access to the messages stored on the email server, then the attacker could read the decrypted content of the encrypted message. This occurs in ViewerPrivate::deleteAttachment in messageviewer/src/viewer/viewer_p.cpp."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://kde.org/info/security/advisory-20210429-1.txt"}, {"url": "https://github.com/KDE/messagelib/commit/3b5b171e91ce78b966c98b1292a1bcbc8d984799"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T23:10:30.742Z"}, "title": "CVE Program Container", "references": [{"url": "https://kde.org/info/security/advisory-20210429-1.txt", "tags": ["x_transferred"]}, {"url": "https://github.com/KDE/messagelib/commit/3b5b171e91ce78b966c98b1292a1bcbc8d984799", "tags": ["x_transferred"]}]}]}}

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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:a:kde:messagelib:*:*:*:*:*:*:*:*", "matchCriteriaId": "7C200D2E-D8B6-4C8B-8477-8BF09382E158", "versionEndIncluding": "5.17.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "KDE Messagelib through 5.17.0 reveals cleartext of encrypted messages in some situations. Deleting an attachment of a decrypted encrypted message stored on a remote server (e.g., an IMAP server) causes KMail to upload the decrypted content of the message to the remote server. With a crafted message, a user could be tricked into decrypting an encrypted message and then deleting an attachment attached to this message. If the attacker has access to the messages stored on the email server, then the attacker could read the decrypted content of the encrypted message. This occurs in ViewerPrivate::deleteAttachment in messageviewer/src/viewer/viewer_p.cpp."}, {"lang": "es", "value": "KDE Messagelib versiones hasta 5.17.0, revela el texto sin cifrar de los mensajes cifrados en algunas situaciones. Eliminar un adjunto de un mensaje cifrado descifrado almacenado en un servidor remoto (por ejemplo, un servidor IMAP) hace que KMail cargue el contenido descifrado del mensaje en el servidor remoto. Con un mensaje dise\u00f1ado, un usuario podr\u00eda ser enga\u00f1ado para descifrar un mensaje cifrado y luego eliminar un archivo adjunto a este mensaje. Si el atacante tiene acceso a los mensajes almacenados en el servidor de correo electr\u00f3nico, entonces el atacante podr\u00eda leer el contenido descifrado del mensaje cifrado. Esto ocurre en la funci\u00f3n ViewerPrivate::deleteAttachment en el archivo messageviewer/src/viewer/viewer_p.cpp"}], "id": "CVE-2021-31855", "lastModified": "2026-06-17T03:52:21.330", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 4.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-06-02T16:15:08.893", "references": [{"source": "cve@mitre.org", "url": "https://github.com/KDE/messagelib/commit/3b5b171e91ce78b966c98b1292a1bcbc8d984799"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://kde.org/info/security/advisory-20210429-1.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/KDE/messagelib/commit/3b5b171e91ce78b966c98b1292a1bcbc8d984799"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://kde.org/info/security/advisory-20210429-1.txt"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-312"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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