{"id":"UBUNTU-CVE-2023-50782","details":"A flaw was found in the python-cryptography package. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.","modified":"2026-01-30T01:42:28.604321Z","published":"2024-02-05T21:15:00Z","related":["USN-6663-1","USN-6673-1","USN-6673-2"],"upstream":["CVE-2023-50782"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-50782"},{"type":"REPORT","url":"https://github.com/pyca/cryptography/issues/9785"},{"type":"REPORT","url":"https://people.redhat.com/~hkario/marvin/"},{"type":"REPORT","url":"https://github.com/openssl/openssl/pull/13817"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6663-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6673-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6673-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-50782"}],"affected":[{"package":{"name":"python-cryptography","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/python-cryptography@1.2.3-1ubuntu0.3+esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.3-1ubuntu0.3+esm1"}]}],"versions":["1.0.1-1ubuntu1","1.0.2-1","1.1-1","1.1.1-1","1.1.1-1ubuntu1","1.1.1-1ubuntu2","1.1.1-1ubuntu3","1.2.2-2","1.2.3-1","1.2.3-1ubuntu0.1","1.2.3-1ubuntu0.2","1.2.3-1ubuntu0.3"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"python-cryptography","binary_version":"1.2.3-1ubuntu0.3+esm1"},{"binary_name":"python3-cryptography","binary_version":"1.2.3-1ubuntu0.3+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-50782.json"}},{"package":{"name":"python-cryptography","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/python-cryptography@2.1.4-1ubuntu1.4+esm1?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.4-1ubuntu1.4+esm1"}]}],"versions":["1.9-1","2.1.3-3","2.1.4-1","2.1.4-1build1","2.1.4-1build2","2.1.4-1ubuntu1","2.1.4-1ubuntu1.1","2.1.4-1ubuntu1.2","2.1.4-1ubuntu1.3","2.1.4-1ubuntu1.4"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"python-cryptography","binary_version":"2.1.4-1ubuntu1.4+esm1"},{"binary_name":"python3-cryptography","binary_version":"2.1.4-1ubuntu1.4+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-50782.json"}},{"package":{"name":"python-cryptography","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/python-cryptography@2.8-3ubuntu0.3?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8-3ubuntu0.3"}]}],"versions":["2.6.1-3.1","2.6.1-4","2.6.1-4ubuntu1","2.8-1ubuntu2","2.8-2","2.8-3","2.8-3ubuntu0.1","2.8-3ubuntu0.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python-cryptography","binary_version":"2.8-3ubuntu0.3"},{"binary_version":"2.8-3ubuntu0.3","binary_name":"python3-cryptography"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-50782.json"}},{"package":{"name":"python-cryptography","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/python-cryptography@3.4.8-1ubuntu2.2?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.8-1ubuntu2.2"}]}],"versions":["3.3.2-1","3.3.2-1build1","3.4.8-1","3.4.8-1ubuntu1","3.4.8-1ubuntu2","3.4.8-1ubuntu2.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python3-cryptography","binary_version":"3.4.8-1ubuntu2.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-50782.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}