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Vulnerability Details : 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 key in secure memory, to ensure that constant-time point operations are used in the MPI library.
Publish Date : 2017-06-10 Last Update Date : 2019-01-16
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- CVSS Scores & Vulnerability Types

CVSS Score
4.3
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Obtain Information
CWE ID 200

- Products Affected By CVE-2017-9526

# Product Type Vendor Product Version Update Edition Language
1 Application Gnupg Libgcrypt 1.7.6 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Gnupg Libgcrypt 1

- References For CVE-2017-9526

https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=5a22de904a0a366ae79f03ff1e13a1232a89e26b CONFIRM
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html CONFIRM
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=f9494b3f258e01b6af8bd3941ce436bcc00afc56 CONFIRM
https://bugzilla.suse.com/show_bug.cgi?id=1042326 CONFIRM
http://www.securityfocus.com/bid/99046
BID 99046 Libgcrypt 'cipher/ecc-eddsa.c' Information Disclosure Vulnerability Release Date:2017-07-04
http://www.debian.org/security/2017/dsa-3880
DEBIAN DSA-3880
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html CONFIRM

- Metasploit Modules Related To CVE-2017-9526

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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