Upstream information

CVE-2018-14780 at MITRE


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.

SUSE information

Overall state of this security issue: Running

This issue is currently rated as having low severity.

CVSS v3 Scores
Base Score 2.2
Vector AV:P/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
Access Vector Physical
Access Complexity High
Privileges Required None
User Interaction None
Scope Changed
Confidentiality Impact Low
Integrity Impact None
Availability Impact None
SUSE Bugzilla entries: 1104809 [IN_PROGRESS], 1104811 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
openSUSE Leap 42.3
  • libykpiv-devel >= 0.1.6-7.3.1
  • libykpiv1 >= 0.1.6-7.3.1
  • libykpiv1-debuginfo >= 0.1.6-7.3.1
  • yubico-piv-tool >= 0.1.6-7.3.1
  • yubico-piv-tool-debuginfo >= 0.1.6-7.3.1
  • yubico-piv-tool-debugsource >= 0.1.6-7.3.1

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise Module for Basesystem 15 GA yubico-piv-tool In progress