CVE-2014-3591 Information disclosure in GnuPG
Physically proximate attackers can extract private keys from GnuPG or Libgcrypt by analyzing electromagnetic fluctuations during Elgamal decryption.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2014-3591?
CVE-2014-3591 is a medium-severity vulnerability in Debian Debian Linux, published on 29 Nov 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-200
Which versions are affected by CVE-2014-3591?
It affects 3 products.
Linux distribution packages (4)
libgcrypt SUSE:Linux Enterprise Desktop 12 | All versions | 1.6.1-13.1 |
libgcrypt SUSE:Linux Enterprise Server 12 | All versions | 1.6.1-13.1 |
libgcrypt SUSE:Linux Enterprise Server for SAP Applications 12 | All versions | 1.6.1-13.1 |
libgcrypt SUSE:Linux Enterprise Software Development Kit 12 | All versions | 1.6.1-13.1 |
Products include Debian Debian Linux, Gnupg Gnupg, Gnupg Libgcrypt.
How do I fix CVE-2014-3591?
Upgrade to a fixed version.
Is CVE-2014-3591 being exploited?
There is no known exploitation of CVE-2014-3591 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-41815, CVE-2015-3591, DEBIAN-CVE-2014-3591, GHSA-5p8v-2xvp-pwmc, SUSE-SU-2015:1179-1, UBUNTU-CVE-2014-3591.