PT-2014-5408 · Gnu+3 · Libgcrypt+4

Daniel Genkin · Published 2014-12-31 · Updated 2024-06-15 · CVE-2014-3591

Positive Technologies (AI Summary)

CVSS v3.1

4.2

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Libgcrypt versions prior to 1.6.3 GnuPG versions prior to 1.4.19

Description The issue concerns the lack of ciphertext blinding for Elgamal decryption, allowing physically proximate attackers to obtain the server's private key. This is achieved by determining factors using crafted ciphertext and analyzing the fluctuations in the electromagnetic field during multiplication.

Recommendations For Libgcrypt versions prior to 1.6.3, update to version 1.6.3 or later to resolve the issue. For GnuPG versions prior to 1.4.19, update to version 1.4.19 or later to resolve the issue.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

ALT-PU-2015-1541

ALT-PU-2015-2052

AZL-41815

CVE-2014-3591

DLA-175-1

DLA-190-1

DSA-3184-1

DSA-3185-1

MGASA-2015-0104

OPENSUSE-SU-2024:10037-1

SUSE-SU-2015:1179-1

SUSE-SU-2015:1626-1

SUSE-SU-2015_1179-1

SUSE-SU-2015_1626-1

USN-2554-1

USN-2555-1

Affected Products

Alt Linux

Gnupg

Libgcrypt

Suse

Ubuntu

References · 49

• https://ubuntu.com/security/notices/USN-2554-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-1606 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2015:1626-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2014-5270 · Vendor Advisory
• https://lists.fedoraproject.org/pipermail/package-announce/2015-March/150931.html · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2014-3591 · Security Note
• https://osv.dev/vulnerability/USN-2555-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2014-3591 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2014-3591 · Vendor Advisory
• https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.html · Vendor Advisory
• https://osv.dev/vulnerability/DSA-3185-1 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2015-0104.html · Security Note
• https://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000364.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2014-3591 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2014-3591 · Vendor Advisory