CVE-2017-0379

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.

Published: 2017-08-29 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-0379 is rated Moderate Risk (56.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.88%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-0379

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 3.78% 1.88% -1.90%
2 2025-03-29 1.88% 3.78% +1.90%
3 2025-03-17 — 1.88% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-0379

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2017-0379

OS Trackers for CVE-2017-0379

vendor priority summary link
debian not yet assigned CVE-2017-0379 not yet assigned priority: Debian including 1 source packages (libgcrypt20), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-0379
redhat medium — https://access.redhat.com/security/cve/CVE-2017-0379
suse medium — https://www.suse.com/security/cve/CVE-2017-0379/
ubuntu medium CVE-2017-0379 medium priority: Ubuntu including 2 source packages (libgcrypt11, libgcrypt20), 8 status rows across 4 suites (trusty, upstream, xenial, zesty): DNE 3, not-affected 2, released 2, needs-triage 1. https://ubuntu.com/security/CVE-2017-0379

Affected software / configurations for CVE-2017-0379

Vendor Product Version Raw CPE
gnupg libgcrypt <= 1.8.0 cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

References for CVE-2017-0379

URL Tags
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
http://www.securityfocus.com/bid/100503 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041294
https://bugs.debian.org/873383 Issue Tracking Third Party Advisory
https://eprint.iacr.org/2017/806 Mailing List Third Party Advisory
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=da780c8183cccc8f533c8ace8211ac2cb2bdee7b
https://lists.debian.org/debian-security-announce/2017/msg00221.html Mailing List Patch Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2017-0379 Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20180726-0002/
https://www.debian.org/security/2017/dsa-3959 Patch Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
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