{"id":"CVE-2019-1563","title":"In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption …","summary":"In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption …","severity":"low","cvss":3.7,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-203","CWE-327"],"vendor":"openssl","product":"openssl","affected":["openssl >= 1.0.2, <= 1.0.2s","openssl >= 1.1.0, <= 1.1.0k","openssl >= 1.1.1, <= 1.1.1c"],"published":"2019-09-10","updated":"2026-10-08","sourceUpdated":"2026-10-08T22:16:52.290","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2019-1563","references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00054.html","label":"openssl-security@openssl.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00072.html","label":"openssl-security@openssl.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00012.html","label":"openssl-security@openssl.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00016.html","label":"openssl-security@openssl.org"},{"url":"http://packetstormsecurity.com/files/154467/Slackware-Security-Advisory-openssl-Updates.html","label":"openssl-security@openssl.org"},{"url":"https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=08229ad838c50f644d7e928e2eef147b4308ad64","label":"openssl-security@openssl.org"},{"url":"https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=631f94db0065c78181ca9ba5546ebc8bb3884b97","label":"openssl-security@openssl.org"},{"url":"https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=e21f8cf78a125cd3c8c0d1a1a6c8bb0b901f893f","label":"openssl-security@openssl.org"},{"url":"https://kc.mcafee.com/corporate/index?page=content&id=SB10365","label":"openssl-security@openssl.org"},{"url":"https://lists.debian.org/debian-lts-announce/2019/09/msg00026.html","label":"openssl-security@openssl.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A/","label":"openssl-security@openssl.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E/","label":"openssl-security@openssl.org"},{"url":"https://seclists.org/bugtraq/2019/Oct/0","label":"openssl-security@openssl.org"},{"url":"https://seclists.org/bugtraq/2019/Oct/1","label":"openssl-security@openssl.org"},{"url":"https://seclists.org/bugtraq/2019/Sep/25","label":"openssl-security@openssl.org"},{"url":"https://security.gentoo.org/glsa/201911-04","label":"openssl-security@openssl.org"},{"url":"https://security.netapp.com/advisory/ntap-20190919-0002/","label":"openssl-security@openssl.org"},{"url":"https://support.f5.com/csp/article/K97324400?utm_source=f5support&amp%3Butm_medium=RSS","label":"openssl-security@openssl.org"},{"url":"https://usn.ubuntu.com/4376-1/","label":"openssl-security@openssl.org"},{"url":"https://usn.ubuntu.com/4376-2/","label":"openssl-security@openssl.org"},{"url":"https://usn.ubuntu.com/4504-1/","label":"openssl-security@openssl.org"},{"url":"https://www.debian.org/security/2019/dsa-4539","label":"openssl-security@openssl.org"},{"url":"https://www.debian.org/security/2019/dsa-4540","label":"openssl-security@openssl.org"},{"url":"https://www.openssl.org/news/secadv/20190910.txt","label":"openssl-security@openssl.org"},{"url":"https://www.oracle.com/security-alerts/cpuapr2020.html","label":"openssl-security@openssl.org"},{"url":"https://www.oracle.com/security-alerts/cpujan2020.html","label":"openssl-security@openssl.org"},{"url":"https://www.oracle.com/security-alerts/cpujul2020.html","label":"openssl-security@openssl.org"},{"url":"https://www.oracle.com/security-alerts/cpuoct2020.html","label":"openssl-security@openssl.org"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html","label":"openssl-security@openssl.org"},{"url":"https://www.tenable.com/security/tns-2019-09","label":"openssl-security@openssl.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00054.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00072.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00012.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00016.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/154467/Slackware-Security-Advisory-openssl-Updates.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=08229ad838c50f644d7e928e2eef147b4308ad64","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=631f94db0065c78181ca9ba5546ebc8bb3884b97","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=e21f8cf78a125cd3c8c0d1a1a6c8bb0b901f893f","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://kc.mcafee.com/corporate/index?page=content&id=SB10365","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2019/09/msg00026.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2019/Oct/0","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2019/Oct/1","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2019/Sep/25","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201911-04","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20190919-0002/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.f5.com/csp/article/K97324400?utm_source=f5support&amp%3Butm_medium=RSS","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/4376-1/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/4376-2/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/4504-1/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2019/dsa-4539","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2019/dsa-4540","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.openssl.org/news/secadv/20190910.txt","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpuapr2020.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpujan2020.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpujul2020.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpuoct2020.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.tenable.com/security/tns-2019-09","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.03838,"epssPercentile":0.89841,"ingestedAt":"2026-10-08T23:16:47.299Z","slug":"CVE-2019-1563","body":"## Overview\n\nIn situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypted message that was encrypted with the public RSA key, using a Bleichenbacher padding oracle attack. Applications are not affected if they use a certificate together with the private RSA key to the CMS_decrypt or PKCS7_decrypt functions to select the correct recipient info to decrypt. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s).\n\n## Affected\n\n- `openssl >= 1.0.2, <= 1.0.2s`\n- `openssl >= 1.1.0, <= 1.1.0k`\n- `openssl >= 1.1.1, <= 1.1.1c`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":21,"depthScoreParts":{"impact":20.4,"likelihood":0.8,"exploitation":0,"ransomware":0},"changes":[]}