Information disclosure in Gnupg Libgcrypt
CVE-2017-9526
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 k…
Vulnerability class: Information Disclosure
EPSS: 0.007 (71.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Gnupg Libgcrypt
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (vendor-advisory, x_refsource_DEBIAN)
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Issue Tracking)
Frequently asked questions
- What is CVE-2017-9526?
- CVE-2017-9526 is a medium-severity vulnerability in Gnupg Libgcrypt, classified under Information Disclosure. CVSS score: 5.9/10. Published 2017-06-11.
- How severe is CVE-2017-9526?
- Medium severity. CVSS v3 base score is 5.9 out of 10.