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 CMSdecrypt or PKCS7decrypt 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).
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "low", "binaries": [ { "libssl1.0.0-udeb-dbgsym": "1.0.1f-1ubuntu2.27+esm1", "libssl-dev": "1.0.1f-1ubuntu2.27+esm1", "libssl1.0.0": "1.0.1f-1ubuntu2.27+esm1", "libssl-doc": "1.0.1f-1ubuntu2.27+esm1", "libcrypto1.0.0-udeb-dbgsym": "1.0.1f-1ubuntu2.27+esm1", "libssl1.0.0-dbg": "1.0.1f-1ubuntu2.27+esm1", "libssl-dev-dbgsym": "1.0.1f-1ubuntu2.27+esm1", "openssl": "1.0.1f-1ubuntu2.27+esm1", "openssl-dbgsym": "1.0.1f-1ubuntu2.27+esm1", "libssl1.0.0-udeb": "1.0.1f-1ubuntu2.27+esm1", "libssl1.0.0-dbgsym": "1.0.1f-1ubuntu2.27+esm1", "libcrypto1.0.0-udeb": "1.0.1f-1ubuntu2.27+esm1" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "libssl1.0.0-udeb-dbgsym": "1.0.2g-1ubuntu4.16", "libssl-dev": "1.0.2g-1ubuntu4.16", "libssl1.0.0": "1.0.2g-1ubuntu4.16", "libssl-doc": "1.0.2g-1ubuntu4.16", "libcrypto1.0.0-udeb-dbgsym": "1.0.2g-1ubuntu4.16", "libssl1.0.0-dbg": "1.0.2g-1ubuntu4.16", "libssl-dev-dbgsym": "1.0.2g-1ubuntu4.16", "openssl": "1.0.2g-1ubuntu4.16", "openssl-dbgsym": "1.0.2g-1ubuntu4.16", "libssl1.0.0-udeb": "1.0.2g-1ubuntu4.16", "libssl1.0.0-dbgsym": "1.0.2g-1ubuntu4.16", "libcrypto1.0.0-udeb": "1.0.2g-1ubuntu4.16" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "libssl-doc": "1.1.1-1ubuntu2.1~18.04.6", "libssl-dev": "1.1.1-1ubuntu2.1~18.04.6", "libssl1.1-dbgsym": "1.1.1-1ubuntu2.1~18.04.6", "libssl1.1-udeb": "1.1.1-1ubuntu2.1~18.04.6", "libssl1.1": "1.1.1-1ubuntu2.1~18.04.6", "openssl-dbgsym": "1.1.1-1ubuntu2.1~18.04.6", "libcrypto1.1-udeb": "1.1.1-1ubuntu2.1~18.04.6", "openssl": "1.1.1-1ubuntu2.1~18.04.6" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "libssl1.0.0-dbgsym": "1.0.2n-1ubuntu5.4", "libssl1.0-dev": "1.0.2n-1ubuntu5.4", "openssl1.0": "1.0.2n-1ubuntu5.4", "openssl1.0-dbgsym": "1.0.2n-1ubuntu5.4", "libssl1.0.0-udeb": "1.0.2n-1ubuntu5.4", "libssl1.0.0": "1.0.2n-1ubuntu5.4", "libcrypto1.0.0-udeb": "1.0.2n-1ubuntu5.4" } ] }