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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-3880-1 | libgcrypt20 security update |
EUVD |
EUVD-2017-18457 | 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. |
Ubuntu USN |
USN-3347-1 | Libgcrypt vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-05T17:11:02.257Z
Reserved: 2017-06-10T00:00:00
Link: CVE-2017-9526
No data.
Status : Deferred
Published: 2017-06-11T02:29:00.183
Modified: 2025-04-20T01:37:25.860
Link: CVE-2017-9526
OpenCVE Enrichment
No data.
Debian DSA
EUVD
Ubuntu USN