CVE-2018-14780

An out-of-bounds read issue was discovered in the Yubico-Piv 1.5.0 smartcard driver. The file lib/ykpiv.c contains the following code in the function `_ykpiv_fetch_object()`: {% highlight c %} if(sw == SW_SUCCESS) { size_t outlen; int offs = _ykpiv_get_length(data + 1, &outlen); if(offs == 0) { return YKPIV_SIZE_ERROR; } memmove(data, data + 1 + offs, outlen); *len = outlen; return YKPIV_OK; } else { return YKPIV_GENERIC_ERROR; } {% endhighlight %} -- in the end, a `memmove()` occurs with a length retrieved from APDU data. This length is not checked for whether it is outside of the APDU data retrieved. Therefore the `memmove()` could copy bytes behind the allocated data buffer into this buffer.

Published: 2018-08-15 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-14780 is rated Low Risk (31/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.45%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2018-14780

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 2026-06-15 0.15% 0.45% +0.30%
2 2025-07-16 0.16% 0.15% -0.01%
3 2025-03-30 — 0.16% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-14780

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.6 3.0 MEDIUM
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:P)
Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire.
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.
 0.9 3.6 [email protected]
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
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.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2018-14780

OS Trackers for CVE-2018-14780

vendor priority summary link
debian low CVE-2018-14780 low priority: Debian including 1 source packages (yubico-piv-tool), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-14780
suse low CVE-2018-14780 severity low: SUSE including 33 source package names (libykcs11-1, libykcs11-1-1.5.0-3.16, …), 119 product×package rows across 29 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 6, … (29 product lines)): Fixed 69, Known Not Affected 50. https://www.suse.com/security/cve/CVE-2018-14780/
ubuntu high CVE-2018-14780 high priority: Ubuntu including 1 source packages (yubico-piv-tool), 12 status rows across 12 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, trusty, upstream, xenial): not-affected 6, released 3, ignored 2, DNE 1. https://ubuntu.com/security/CVE-2018-14780

Affected software / configurations for CVE-2018-14780

Vendor Product Version Raw CPE
yubico piv_manager < 1.4.2 cpe:2.3:a:yubico:piv_manager:*:*:*:*:*:*:*:*
yubico piv_manager 1.4.2 cpe:2.3:a:yubico:piv_manager:1.4.2:*:*:*:*:*:*:*
yubico piv_manager 1.4.2b cpe:2.3:a:yubico:piv_manager:1.4.2b:*:*:*:*:*:*:*
yubico piv_manager 1.4.2c cpe:2.3:a:yubico:piv_manager:1.4.2c:*:*:*:*:*:*:*
yubico piv_manager 1.4.2d cpe:2.3:a:yubico:piv_manager:1.4.2d:*:*:*:*:*:*:*
yubico piv_manager 1.4.2e cpe:2.3:a:yubico:piv_manager:1.4.2e:*:*:*:*:*:*:*
yubico piv_manager 1.4.2f cpe:2.3:a:yubico:piv_manager:1.4.2f:*:*:*:*:*:*:*
yubico piv_manager 1.4.2g cpe:2.3:a:yubico:piv_manager:1.4.2g:*:*:*:*:*:*:*
yubico piv_tool < 1.6.0 cpe:2.3:a:yubico:piv_tool:*:*:*:*:*:*:*:*
yubico smart_card_minidriver <= 3.7.3.160 cpe:2.3:a:yubico:smart_card_minidriver:*:*:*:*:*:*:*:*

References for CVE-2018-14780

cvelogic Threat Intelligence