Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2018-14780 | First vendor Publication | 2018-08-15 |
| Vendor | Cve | Last vendor Modification | 2020-02-25 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | |||
|---|---|---|---|
| Overall CVSS Score | 4.6 | ||
| Base Score | 4.6 | Environmental Score | 4.6 |
| impact SubScore | 3.6 | Temporal Score | 4.6 |
| Exploitabality Sub Score | 0.9 | ||
| Attack Vector | Physical | Attack Complexity | Low |
| Privileges Required | None | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | High |
| Integrity Impact | None | Availability Impact | None |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:L/AC:L/Au:N/C:P/I:N/A:N) | |||
|---|---|---|---|
| Cvss Base Score | 2.1 | Attack Range | Local |
| Cvss Impact Score | 2.9 | Attack Complexity | Low |
| Cvss Expoit Score | 3.9 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| 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. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14780 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-125 | Out-of-bounds Read |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2021-05-04 13:09:43 |
|
| 2021-04-22 02:23:14 |
|
| 2020-05-23 02:11:35 |
|
| 2020-05-23 01:07:48 |
|
| 2018-10-23 00:20:02 |
|
| 2018-08-16 00:19:37 |
|
