CVE-2017-0379

Slackware Security Advisory - libgcrypt Updates

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Libgcrypt before 1.8.1 does not properly consider Curve25519 side-channel attacks, which makes it easier for attackers to discover a secret key, related to cipher/ecc.c and mpi/ec.c.

Libgcrypt en versiones anteriores a la 1.8.1 no considera correctamente ataques de canal lateral Curve25519, lo que facilita que los atacantes descubran una clave secreta relacionada con cipher/ecc.c y mpi/ec.c.

Daniel Genkin, Luke Valenta and Yuval Yarom discovered that Libgcrypt is prone to a local side-channel attack against the ECDH encryption with Curve25519, allowing recovery of the private key. See https://eprint.iacr.org/2017/806 for details. For the stable distribution (stretch), this problem has been fixed in version 1.7.6-2+deb9u2. For the unstable distribution (sid), this problem has been fixed in version 1.7.9-1.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-11-29 CVE Reserved
2017-08-29 CVE Published
2024-08-05 CVE Updated
2025-08-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CAPEC

References (11)

URL	Tag	Source
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html	X_refsource_confirm
http://www.securityfocus.com/bid/100503	Third Party Advisory
http://www.securitytracker.com/id/1041294	Vdb Entry
https://bugs.debian.org/873383	Issue Tracking
https://eprint.iacr.org/2017/806	Mailing List
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=da780c8183cccc8f533c8ace8211ac2cb2bdee7b	X_refsource_misc
https://security.netapp.com/advisory/ntap-20180726-0002	X_refsource_confirm
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC
https://lists.debian.org/debian-security-announce/2017/msg00221.html	2023-11-07
https://security-tracker.debian.org/tracker/CVE-2017-0379	2023-11-07
https://www.debian.org/security/2017/dsa-3959	2023-11-07

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Gnupg Search vendor "Gnupg"		Libgcrypt Search vendor "Gnupg" for product "Libgcrypt"				<= 1.8.0 Search vendor "Gnupg" for product "Libgcrypt" and version " <= 1.8.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected