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Vulnerability Details : 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.
Publish Date : 2018-08-15 Last Update Date : 2018-10-22
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- CVSS Scores & Vulnerability Types

CVSS Score
2.1
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 125

- Products Affected By CVE-2018-14780

# Product Type Vendor Product Version Update Edition Language
1 Application Yubico Piv Manager 1.4.2e Version Details Vulnerabilities
2 Application Yubico Piv Manager 1.4.2f Version Details Vulnerabilities
3 Application Yubico Piv Manager 1.4.2 Version Details Vulnerabilities
4 Application Yubico Piv Manager 1.4.2g Version Details Vulnerabilities
5 Application Yubico Piv Manager 1.4.2b Version Details Vulnerabilities
6 Application Yubico Piv Manager 1.4.2c Version Details Vulnerabilities
7 Application Yubico Piv Manager 1.4.2d Version Details Vulnerabilities
8 Application Yubico Smart Card Minidriver 3.7.3.160 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Yubico Piv Manager 7
Yubico Smart Card Minidriver 1

- References For CVE-2018-14780

https://www.yubico.com/support/security-advisories/ysa-2018-03/ CONFIRM
https://www.x41-dsec.de/lab/advisories/x41-2018-001-Yubico-Piv/
http://www.openwall.com/lists/oss-security/2018/08/14/2
MLIST [oss-security] 20180814 X41 D-Sec GmbH Security Advisory X41-2018-001: Multiple Vulnerabilities in Yubico Piv

- Metasploit Modules Related To CVE-2018-14780

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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