CVE-2014-3591 Information

Description

Libgcrypt before 1.6.3 and GnuPG before 1.4.19 does not implement ciphertext blinding for Elgamal decryption which allows physically proximate attackers to obtain the server’s private key by determining factors using crafted ciphertext and the fluctuations in the electromagnetic field during multiplication.

CVSS Vector

CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

http://www.cs.tau.ac.il/~tromer/radioexp/ http://www.debian.org/security/2015/dsa-3184 http://www.debian.org/security/2015/dsa-3185 https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.html https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000364.html

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

4.2