Impact: Low Public Date: 2019-09-10 CWE: CWE-200 Bugzilla: 1752100: CVE-2019-1563 openssl: information disclosure in PKCS7_dataDecode and CMS_decrypt_set1_pkey 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).
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2019-1563 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 3.7 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity Impact | None |
| Availability Impact | None |
| Platform | Package | State |
|---|---|---|
| Red Hat JBoss Web Server 5 | openssl | Under investigation |
| Red Hat JBoss Web Server 3 | openssl | Under investigation |
| Red Hat JBoss EWS 2 | openssl | Under investigation |
| Red Hat JBoss EAP 6 | openssl | Under investigation |
| Red Hat JBoss EAP 5 | openssl | Under investigation |
| Red Hat JBoss Core Services 1 | openssl | Under investigation |
| Red Hat Enterprise Linux 8 | openssl | Under investigation |
| Red Hat Enterprise Linux 8 | mingw-openssl | Under investigation |
| Red Hat Enterprise Linux 7 | openssl | Under investigation |
| Red Hat Enterprise Linux 6 | openssl | Under investigation |
| Red Hat Enterprise Linux 5 | openssl | Under investigation |
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