CVE-2015-4000
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- CVE-2015-4000
CVE Details
| Release Date: | 2015-05-20 |
Description
A flaw was found in the way the TLS protocol composes the Diffie-Hellman exchange (for both export and non-export grade cipher suites). An attacker could use this flaw to downgrade a DHE connection to use export-grade key sizes, which could then be broken by sufficient pre-computation. This can lead to a passive man-in-the-middle attack in which the attacker is able to decrypt all traffic.
See more information about CVE-2015-4000 from MITRE CVE dictionary and NIST NVD
CVSS v2.0 metrics
NOTE: The following CVSS v2.0 metrics and score provided are preliminary and subject to review.
| Base Score: | 4.3 | Base Metrics: | AV:N/AC:M/Au:N/C:P/I:N/A:N |
| Access Vector: | Network | Attack Complexity: | Medium |
| Authentication: | None required | Confidentiality Impact: | Partial |
| Integrity Impact: | None | Availability Impact: | None |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 5 (java-1.6.0-openjdk) | ELSA-2015-1526 | 2015-07-31 |
| Oracle Linux version 5 (java-1.7.0-openjdk) | ELSA-2015-1230 | 2015-07-16 |
| Oracle Linux version 5 (openssl) | ELSA-2015-1197 | 2015-06-30 |
| Oracle Linux version 6 (java-1.6.0-openjdk) | ELSA-2015-1526 | 2015-07-31 |
| Oracle Linux version 6 (java-1.7.0-openjdk) | ELSA-2015-1229 | 2015-07-15 |
| Oracle Linux version 6 (java-1.8.0-openjdk) | ELSA-2015-1228 | 2015-07-15 |
| Oracle Linux version 6 (nss) | ELSA-2015-1185 | 2015-06-25 |
| Oracle Linux version 6 (nss-util) | ELSA-2015-1185 | 2015-06-25 |
| Oracle Linux version 6 (openssl) | ELSA-2015-1072 | 2015-06-04 |
| Oracle Linux version 7 (java-1.6.0-openjdk) | ELSA-2015-1526 | 2015-07-31 |
| Oracle Linux version 7 (java-1.7.0-openjdk) | ELSA-2015-1229 | 2015-07-15 |
| Oracle Linux version 7 (java-1.8.0-openjdk) | ELSA-2015-1228 | 2015-07-15 |
| Oracle Linux version 7 (nss) | ELSA-2015-1185 | 2015-06-25 |
| Oracle Linux version 7 (nss-util) | ELSA-2015-1185 | 2015-06-25 |
| Oracle Linux version 7 (openssl) | ELSA-2015-1072 | 2015-06-04 |
| Oracle VM version 3.3 (nss) | OVMSA-2015-0073 | 2015-06-26 |
| Oracle VM version 3.3 (nss-util) | OVMSA-2015-0073 | 2015-06-26 |
| Oracle VM version 3.3 (openssl) | OVMSA-2015-0065 | 2015-06-04 |
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