CVE-2017-9526

Published: Jun 11, 2017Modified: May 13, 2026

5.9

Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitability: 2.2 / Impact: 3.6

Source: NVD

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.

Affected (1)

Products: Gnupg: Libgcrypt

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Gnupg Libgcrypt	Up to 1.7.6

Related CWEs

Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

References (14)

http://www.debian.org/security/2017/dsa-3880

Source: cve@mitre.org

http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html

Source: cve@mitre.org

http://www.securityfocus.com/bid/99046

Source: cve@mitre.org

Third Party AdvisoryVDB Entry

https://bugzilla.suse.com/show_bug.cgi?id=1042326

Source: cve@mitre.org

Issue TrackingPatch

https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=5a22de904a0a366ae79f03ff1e13a1232a89e26b

Source: cve@mitre.org

https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=f9494b3f258e01b6af8bd3941ce436bcc00afc56

Source: cve@mitre.org

https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html

Source: cve@mitre.org

http://www.debian.org/security/2017/dsa-3880

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.securityfocus.com/bid/99046

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party AdvisoryVDB Entry

https://bugzilla.suse.com/show_bug.cgi?id=1042326

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingPatch

https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=5a22de904a0a366ae79f03ff1e13a1232a89e26b

Source: af854a3a-2127-422b-91ae-364da2661108

https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=f9494b3f258e01b6af8bd3941ce436bcc00afc56

Source: af854a3a-2127-422b-91ae-364da2661108

https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.