CVE-2018-14779

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Source
https://cve.org/CVERecord?id=CVE-2018-14779
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-14779.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-14779
Downstream
Related
Published
2018-08-15T18:29:00.747Z
Modified
2026-03-14T09:27:50.019907Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A buffer overflow 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_transfer_data(): {% highlight c %} if(*outlen + recvlen - 2 > maxout) { fprintf(stderr, "Output buffer to small, wanted to write %lu, max was %lu.", *outlen + recvlen - 2, maxout); } if(outdata) { memcpy(outdata, data, recvlen - 2); outdata += recvlen - 2; *outlen += recv_len - 2; } {% endhighlight %} -- it is clearly checked whether the buffer is big enough to hold the data copied using memcpy(), but no error handling happens to avoid the memcpy() in such cases. This code path can be triggered with malicious data coming from a smartcard.

References

Affected packages

Git /

Affected ranges

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-14779.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "1.4.2"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "1.4.2"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "1.4.2b"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "1.4.2c"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "1.4.2d"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "1.4.2e"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "1.4.2f"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "1.4.2g"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "1.6.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "3.7.3.160"
            }
        ]
    }
]