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CVE-2018-14780

An out-of-bounds read issue was discovered in the Yubico-Piv 1.5.0 smartcard driver. The file lib...

4.6 MediumFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Physical
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

0.45%Down 0.6 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 4.6

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.

Record
CVE-2018-14780
CVSS 3.0
4.6 MediumCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0
2.1 LowAV:L/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-125
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2018-14780
Updated
2026-11-02
EUVDEUVD-2018-6664 No score

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.

Record
EUVD-2018-6664
Updated
2026-11-03
GitHub AdvisoriesGHSA-xwgg-25ph-4c8p 4.6

An out-of-bounds read issue was discovered in the Yubico-Piv 1.5.0 smartcard driver. The file lib...

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.

Record
GHSA-xwgg-25ph-4c8p
CVSS 3.0
4.6 MediumCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-125
Updated
2026-11-02
OSV 4.6

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.

Record
CVE-2018-14780
CVSS 3.0
4.6 MediumCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVDEBIAN-CVE-2018-14780 4.6

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.

Record
DEBIAN-CVE-2018-14780
CVSS 3.0
4.6 MediumCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
Show 6 moreShow less
OSVUBUNTU-CVE-2018-14780 4.6

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.

Record
UBUNTU-CVE-2018-14780
CVSS 3.0
4.6 MediumCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVopenSUSE-SU-2019:1341-1 No score

Security update for yubico-piv-tool

This update for yubico-piv-tool fixes the following issues:

Security issues fixed:

  • Fixed an buffer overflow and an out of bounds memory read in ykpiv_transfer_data(), which could be triggered by a malicious token. (CVE-2018-14779, bsc#1104809, YSA-2018-03)
  • Fixed an buffer overflow and an out of bounds memory read in _ykpiv_fetch_object(), which could be triggered by a malicious token. (CVE-2018-14780, bsc#1104811, YSA-2018-03)

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2019:1341-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:11537-1 No score

libykcs11-2-2.2.0-1.5 on GA media

These are all security issues fixed in the libykcs11-2-2.2.0-1.5 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:11537-1
Updated
2026-11-02
OSVSUSE-SU-2019:1123-1 No score

Security update for yubico-piv-tool

This update for yubico-piv-tool fixes the following issues:

Security issues fixed:

  • Fixed an buffer overflow and an out of bounds memory read in ykpiv_transfer_data(), which could be triggered by a malicious token. (CVE-2018-14779, bsc#1104809, YSA-2018-03)
  • Fixed an buffer overflow and an out of bounds memory read in _ykpiv_fetch_object(), which could be triggered by a malicious token. (CVE-2018-14780, bsc#1104811, YSA-2018-03)
Record
SUSE-SU-2019:1123-1
Updated
2026-11-02
OSVUSN-4276-1 No score

Yubico PIV Tool vulnerabilities

It was discovered that libykpiv, a supporting library of the Yubico PIV Tool and YubiKey PIV Manager, mishandled specially crafted input. An attacker with a custom-made, malicious USB device could potentially execute arbitrary code on a computer running the Yubico PIV Tool or Yubikey PIV Manager.

Record
USN-4276-1
Updated
2026-11-02
OSVUSN-4846-1 No score

yubico-piv-tool vulnerabilities

It was discovered that libykpiv, a supporting library of the Yubico PIV tool and YubiKey PIV Manager, mishandled specially crafted input. An attacker with a custom-made, malicious USB device could potentially execute arbitrary code on a computer running the Yubico PIV Tool or Yubikey PIV Manager.

Record
USN-4846-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
yubico-piv-tool
Debian:12
 before 1.6.1-1
1.6.1-1
yubico-piv-tool
Debian:13
 before 1.6.1-1
1.6.1-1
yubico-piv-tool
Debian:14
 before 1.6.1-1
1.6.1-1
yubico-piv-tool
SUSE:Linux Enterprise Module for Basesystem 15
 before 1.5.0-3.3.33
1.5.0-3.3.33
yubico-piv-tool
Ubuntu:Pro:16.04:LTS
 before 1.0.3-1ubuntu0.1~esm1, plus listed versions
1.0.1-11.0.3-1
1.0.3-1ubuntu0.1~esm1
yubico-piv-tool
Ubuntu:18.04:LTS
 before 1.4.2-2ubuntu0.1, plus listed versions
1.4.2-2
1.4.2-2ubuntu0.1
yubico-piv-tool
openSUSE:Leap 15.0
 before 1.5.0-lp150.2.3.1
1.5.0-lp150.2.3.1
yubico-piv-tool
openSUSE:Tumbleweed
 before 2.2.0-1.5
2.2.0-1.5

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-14780 is a medium vulnerability (CVSS 4.6) in Yubico Piv Manager, published August 15, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.45%, the 39th percentile. Fixed in yubico-piv-tool 1.6.1-1.

References

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