CVE-2014-3591

Name: CVE-2014-3591
Creator: NVD / NIST
Published: 2019-11-29T22:15:11.703+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.2/10EPSS 0.58%

Last modified Jun 17, 2026

CVE-2014-3591 is a medium-severity vulnerability rated 4.2/10 on the CVSS scale. 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.. EPSS estimates a 0.58% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

4.2/10

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

EPSS Probability

0.58%

43.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Gnupg	Gnupg	< 1.4.19
Gnupg	Libgcrypt	< 1.6.3
Debian	Debian Linux	7.0
Debian	Debian Linux	8.0

References

http://www.cs.tau.ac.il/~tromer/radioexp/Third Party Advisory
http://www.debian.org/security/2015/dsa-3184Third Party Advisory
http://www.debian.org/security/2015/dsa-3185Third Party Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.htmlPatch, Release Notes, Vendor Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000364.htmlPatch, Vendor Advisory
http://www.cs.tau.ac.il/~tromer/radioexp/Third Party Advisory
http://www.debian.org/security/2015/dsa-3184Third Party Advisory
http://www.debian.org/security/2015/dsa-3185Third Party Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.htmlPatch, Release Notes, Vendor Advisory
https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000364.htmlPatch, Vendor Advisory

Timeline

Published: Nov 29, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-3591?

How severe is CVE-2014-3591?

CVE-2014-3591 has a CVSS score of 4.2/10 (MEDIUM severity). The EPSS model estimates a 0.58% probability of exploitation in the next 30 days.

How do I fix CVE-2014-3591?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-3591?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST