CVE-2017-9526
Medium
Description
In Libgcrypt before 1.7.7, an attacker who learns the EdDSA session key (from side-channel observation during the signing process) can easily recover the long-term secret key. 1.7.7 makes a cipher/ecc-eddsa.c change to store this session key in secure memory, to ensure that constant-time point operations are used in the MPI library.
SeverityMedium
CVSS5.9
Exploit probability—
ProductGnupg Libgcrypt
PublishedJun 11, 2017
First seenJun 11, 2017
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnupg libgcrypt | v ≤ 1.7.6 | — |
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