CVE-2015-7511

libgcrypt: side-channel attack on ECDH with Weierstrass curves

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Severity

Low

Red Hat Product Security

1.8

CVSS 2.0

Review impact separately from score.

Published · February 8, 2016

Updated · November 21, 2025

Description

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.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 2.0 · 1.8
AV:A/AC:H/Au:N/C:P/I:N/A:N

CWE not specified