CVE-2018-14780

Description

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.

Risk Information

Base Score

4.6

MODERATE

Vector

CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Score

Exploitation Probability

0.147

Associated Vulnerability

Vulnerability	OS Platform
Command line tool for the YubiKey PIV applet (USN-4276-1) ykcs11_1.4.2-2ubuntu0.1_i386.deb	Linux
Command line tool for the YubiKey PIV applet (USN-4276-1) ykcs11_1.4.2-2ubuntu0.1_amd64.deb	Linux
Command line tool for the YubiKey PIV applet (USN-4276-1) libykpiv1_1.4.2-2ubuntu0.1_i386.deb	Linux
Command line tool for the YubiKey PIV applet (USN-4276-1) libykpiv1_1.4.2-2ubuntu0.1_amd64.deb	Linux
Command line tool for the YubiKey PIV applet (USN-4276-1) yubico-piv-tool_1.4.2-2ubuntu0.1_i386.deb	Linux
Command line tool for the YubiKey PIV applet (USN-4276-1) yubico-piv-tool_1.4.2-2ubuntu0.1_amd64.deb	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234