Libgcrypt 'cipher/ecc-eddsa.c' Information Disclosure Vulnerability

Bugtraq ID:	99046
Class:	Design Error
CVE:	CVE-2017-9526
Remote:	Yes
Local:	No
Published:	Jun 01 2017 12:00AM
Updated:	Jul 04 2017 07:05AM
Credit:	The vendor reported this issue.
Vulnerable:	Ubuntu Ubuntu Linux 17.04 Ubuntu Ubuntu Linux 16.10 Ubuntu Ubuntu Linux 16.04 LTS Ubuntu Ubuntu Linux 14.04 LTS Gnupg Libgcrypt 1.7.3 Gnupg Libgcrypt 1.6.6 Gnupg Libgcrypt 1.6.1 Gnupg Libgcrypt 1.6 Gnupg Libgcrypt 1.5.6 Gnupg Libgcrypt 1.5.4 Gnupg Libgcrypt 1.6.3 Gnupg Libgcrypt 1.6.2 Gnupg Libgcrypt 1.5.3 Gnupg Libgcrypt 1.5.2 Gnupg Libgcrypt 1.5.1 Gnupg Libgcrypt 1.5.0 Gnupg Libgcrypt 1.4.6 Gnupg Libgcrypt 1.4.5 Gnupg Libgcrypt 1.4.4 Gnupg Libgcrypt 1.4.3 Gnupg Libgcrypt 1.4.0 Debian Linux 6.0 sparc Debian Linux 6.0 s/390 Debian Linux 6.0 powerpc Debian Linux 6.0 mips Debian Linux 6.0 ia-64 Debian Linux 6.0 ia-32 Debian Linux 6.0 arm Debian Linux 6.0 amd64
Not Vulnerable:	Gnupg Libgcrypt 1.7.7

Libgcrypt 'cipher/ecc-eddsa.c' Information Disclosure Vulnerability

Libgcrypt is prone to an information-disclosure vulnerability.

Attackers can exploit this issue to obtain sensitive information that may aid in further attacks.

Versions prior to Libgcrypt 1.7.7 are vulnerable.

Libgcrypt 'cipher/ecc-eddsa.c' Information Disclosure Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Libgcrypt 'cipher/ecc-eddsa.c' Information Disclosure Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

Libgcrypt 'cipher/ecc-eddsa.c' Information Disclosure Vulnerability

References:

• Libgcrypt HomePage (Libgcrypt)
  
• libgcrypt: Possible timing attack on EdDSA session key (Red Hat)
  
• CVE-2017-9526 (Red Hat)