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.

Link	Resource
https://www.yubico.com/support/security-advisories/ysa-2018-03/	Vendor Advisory
https://www.x41-dsec.de/lab/advisories/x41-2018-001-Yubico-Piv/	Third Party Advisory
http://www.openwall.com/lists/oss-security/2018/08/14/2	Mailing List Third Party Advisory
https://usn.ubuntu.com/4276-1/

Configuration 1

cpe:2.3:a:yubico:smart_card_minidriver:*:*:*:*:*:*:*:* cpe:2.3:a:yubico:piv_manager:1.4.2g:*:*:*:*:*:*:* cpe:2.3:a:yubico:piv_manager:1.4.2f:*:*:*:*:*:*:* cpe:2.3:a:yubico:piv_manager:1.4.2e:*:*:*:*:*:*:* cpe:2.3:a:yubico:piv_manager:1.4.2d:*:*:*:*:*:*:* cpe:2.3:a:yubico:piv_manager:1.4.2c:*:*:*:*:*:*:* cpe:2.3:a:yubico:piv_manager:1.4.2b:*:*:*:*:*:*:* cpe:2.3:a:yubico:piv_tool:*:*:*:*:*:*:*:* cpe:2.3:a:yubico:piv_manager:*:*:*:*:*:*:*:* cpe:2.3:a:yubico:piv_manager:1.4.2:*:*:*:*:*:*:*

---

Published : 2018-08-15 06:29

Updated : 2020-02-25 04:15

---

NVD link : CVE-2018-14780

Mitre link : CVE-2018-14780

No products.

CWE-125

Out-of-bounds Read