Explain CVE-2019-1563
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 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).
Affected Products: OpenSSL
References: [{'name': '20190912 [slackware-security] openssl (SSA:2019-254-03)', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'https://seclists.org/bugtraq/2019/Sep/25'}, {'name': 'openSUSE-SU-2019:2158', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00054.html'}, {'name': 'FEDORA-2019-d15aac6c4e', 'tags': ['vendor-advisory', 'x_refsource_FEDORA'], 'url': 'https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A/'}, {'name': 'openSUSE-SU-2019:2189', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00072.html'}, {'name': '[debian-lts-announce] 20190925 [SECURITY] [DLA 1932-1] openssl security update', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.debian.org/debian-lts-announce/2019/09/msg00026.html'}, {'name': 'FEDORA-2019-d51641f152', 'tags': ['vendor-advisory', 'x_refsource_FEDORA'], 'url': 'https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E/'}, {'name': '20191001 [SECURITY] [DSA 4539-1] openssl security update', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'https://seclists.org/bugtraq/2019/Oct/1'}, {'name': '20191001 [SECURITY] [DSA 4540-1] openssl1.0 security update', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'https://seclists.org/bugtraq/2019/Oct/0'}, {'name': 'DSA-4539', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'https://www.debian.org/security/2019/dsa-4539'}, {'name': 'DSA-4540', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'https://www.debian.org/security/2019/dsa-4540'}, {'name': 'openSUSE-SU-2019:2268', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00012.html'}, {'name': 'openSUSE-SU-2019:2269', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00016.html'}, {'name': 'GLSA-201911-04', 'tags': ['vendor-advisory', 'x_refsource_GENTOO'], 'url': 'https://security.gentoo.org/glsa/201911-04'}, {'name': 'USN-4376-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'https://usn.ubuntu.com/4376-1/'}, {'tags': ['x_refsource_MISC'], 'url': 'https://www.oracle.com/security-alerts/cpuapr2020.html'}, {'tags': ['x_refsource_MISC'], 'url': 'https://www.oracle.com/security-alerts/cpujul2020.html'}, {'tags': ['x_refsource_MISC'], 'url': 'https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html'}, {'tags': ['x_refsource_MISC'], 'url': 'https://www.oracle.com/security-alerts/cpujan2020.html'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://www.openssl.org/news/secadv/20190910.txt'}, {'tags': ['x_refsource_MISC'], 'url': 'http://packetstormsecurity.com/files/154467/Slackware-Security-Advisory-openssl-Updates.html'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://security.netapp.com/advisory/ntap-20190919-0002/'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://www.tenable.com/security/tns-2019-09'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=08229ad838c50f644d7e928e2eef147b4308ad64'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=631f94db0065c78181ca9ba5546ebc8bb3884b97'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=e21f8cf78a125cd3c8c0d1a1a6c8bb0b901f893f'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://support.f5.com/csp/article/K97324400?utm_source=f5support&amp%3Butm_medium=RSS'}, {'name': 'USN-4376-2', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'https://usn.ubuntu.com/4376-2/'}, {'name': 'USN-4504-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'https://usn.ubuntu.com/4504-1/'}, {'tags': ['x_refsource_MISC'], 'url': 'https://www.oracle.com/security-alerts/cpuoct2020.html'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://kc.mcafee.com/corporate/index?page=content&id=SB10365'}]
CVE State: PUBLISHED