CVE-2014-3591

MEDIUM 4.2CVE-2014-3591 · Published 29/11/2019 · updated 17/06/2026

In short

CVE-2014-3591 is a MEDIUM (CVSS 4.2) vulnerability affecting gnupg (gnupg), libgcrypt (gnupg).
Chance of exploitation in the next 30 days (EPSS): 0.60%, higher than 48.7% of all vulnerabilities.
Fix: update to 1.4.19, 1.6.3 or later.

Package	Affected versions	Patched versions
gnupg gnupg	`< 1.4.19`	`1.4.19`
libgcrypt gnupg	`< 1.6.3`	`1.6.3`

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.

References

cs.tau.ac.il/~tromer/radioexp · Third Party Advisory
debian.org/security/2015/dsa-3184 · Third Party Advisory
debian.org/security/2015/dsa-3185 · Third Party Advisory
lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.html · Patch
lists.gnupg.org/pipermail/gnupg-announce/2015q1/000364.html · Patch

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Package

Affected versions

Patched versions

gnupg

< 1.4.19

1.4.19

libgcrypt

gnupg

< 1.6.3

1.6.3

Description

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