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CVE-2019-1563

Padding Oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
OpenSSL / OpenSSLaffected Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c); affected Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k); affected Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s)

CWE

No CWE identifiers supplied.

References

ADP enrichment

CVE

No English description supplied.

CISA-ADP

No English description supplied.

No references supplied.