Vulnerability Details : 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).
Exploit prediction scoring system (EPSS) score for CVE-2019-1563
Probability of exploitation activity in the next 30 days: 0.37%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 69 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2019-1563
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:N |
8.6
|
2.9
|
[email protected] |
|
3.7
|
LOW | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
2.2
|
1.4
|
[email protected] |
CWE ids for CVE-2019-1563
-
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.Assigned by: [email protected] (Primary)
-
The product uses a broken or risky cryptographic algorithm or protocol.Assigned by: [email protected] (Primary)
References for CVE-2019-1563
-
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=e21f8cf78a125cd3c8c0d1a1a6c8bb0b901f893f
Mailing List;Patch;Vendor Advisory
- https://www.debian.org/security/2019/dsa-4540
-
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=08229ad838c50f644d7e928e2eef147b4308ad64
Mailing List;Patch;Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00054.html
- https://www.oracle.com/security-alerts/cpujan2020.html
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://www.tenable.com/security/tns-2019-09
- https://lists.fedoraproject.org/archives/list/[email protected]/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E/
- https://www.oracle.com/security-alerts/cpuapr2020.html
- https://seclists.org/bugtraq/2019/Oct/0
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://usn.ubuntu.com/4376-1/
-
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=631f94db0065c78181ca9ba5546ebc8bb3884b97
Mailing List;Patch;Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00072.html
- https://security.gentoo.org/glsa/201911-04
- http://packetstormsecurity.com/files/154467/Slackware-Security-Advisory-openssl-Updates.html
- https://www.debian.org/security/2019/dsa-4539
- https://usn.ubuntu.com/4504-1/
- https://seclists.org/bugtraq/2019/Oct/1
-
https://support.f5.com/csp/article/K97324400?utm_source=f5support&utm_medium=RSS
- https://lists.fedoraproject.org/archives/list/[email protected]/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A/
- https://seclists.org/bugtraq/2019/Sep/25
-
https://www.openssl.org/news/secadv/20190910.txt
Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/09/msg00026.html
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00012.html
- https://security.netapp.com/advisory/ntap-20190919-0002/
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00016.html
- https://kc.mcafee.com/corporate/index?page=content&id=SB10365
- https://usn.ubuntu.com/4376-2/
Products affected by CVE-2019-1563
- cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
- cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*