Libgcrypt before 1.6.5 does not properly perform elliptic-point curve multiplication during decryption, which makes it easier for physically proximate attackers to extract ECDH keys by measuring electromagnetic emanations.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2015-7511 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 1.8 |
|---|---|
| Base Metrics | AV:A/AC:H/Au:N/C:P/I:N/A:N |
| Access Vector | Adjacent Network |
| Access Complexity | High |
| Authentication | None |
| Confidentiality Impact | Partial |
| Integrity Impact | None |
| Availability Impact | None |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | libgcrypt | Not affected |
| Red Hat Enterprise Linux 6 | libgcrypt | Not affected |
| Red Hat Enterprise Linux 5 | libgcrypt | Not affected |
Vulmon