CVE-2018-14779
Yubico-Piv Buffer Overflow Vulnerability
Description
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(*out_len + recv_len - 2 > max_out) { fprintf(stderr, "Output buffer to small, wanted to write %lu, max was %lu.", *out_len + recv_len - 2, max_out); } if(out_data) { memcpy(out_data, data, recv_len - 2); out_data += recv_len - 2; *out_len += 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.
INFO
Published Date :
Aug. 15, 2018, 6:29 p.m.
Last Modified :
Feb. 25, 2020, 4:15 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
0.9
Affected Products
The following products are affected by CVE-2018-14779
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-14779.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2018/08/14/2 | Mailing List Third Party Advisory |
| https://usn.ubuntu.com/4276-1/ | |
| https://www.x41-dsec.de/lab/advisories/x41-2018-001-Yubico-Piv/ | Third Party Advisory |
| https://www.yubico.com/support/security-advisories/ysa-2018-03/ | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-14779 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-14779 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 25, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4276-1/ [No Types Assigned] -
Initial Analysis by [email protected]
Oct. 22, 2018
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3 AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://www.openwall.com/lists/oss-security/2018/08/14/2 No Types Assigned http://www.openwall.com/lists/oss-security/2018/08/14/2 Mailing List, Third Party Advisory Changed Reference Type https://www.x41-dsec.de/lab/advisories/x41-2018-001-Yubico-Piv/ No Types Assigned https://www.x41-dsec.de/lab/advisories/x41-2018-001-Yubico-Piv/ Third Party Advisory Changed Reference Type https://www.yubico.com/support/security-advisories/ysa-2018-03/ No Types Assigned https://www.yubico.com/support/security-advisories/ysa-2018-03/ Vendor Advisory Added CWE CWE-787 Added CWE CWE-119 Added CPE Configuration OR *cpe:2.3:a:yubico:piv_manager:*:*:*:*:*:*:*:* versions up to (excluding) 1.4.2 *cpe:2.3:a:yubico:piv_manager:1.4.2:*:*:*:*:*:*:* *cpe:2.3:a:yubico:piv_manager:1.4.2b:*:*:*:*:*:*:* *cpe:2.3:a:yubico:piv_manager:1.4.2c:*:*:*:*:*:*:* *cpe:2.3:a:yubico:piv_manager:1.4.2d:*:*:*:*:*:*:* *cpe:2.3:a:yubico:piv_manager:1.4.2e:*:*:*:*:*:*:* *cpe:2.3:a:yubico:piv_manager:1.4.2f:*:*:*:*:*:*:* *cpe:2.3:a:yubico:piv_manager:1.4.2g:*:*:*:*:*:*:* *cpe:2.3:a:yubico:piv_tool:*:*:*:*:*:*:*:* versions up to (excluding) 1.6.0 *cpe:2.3:a:yubico:smart_card_minidriver:*:*:*:*:*:*:*:* versions up to (including) 3.7.3.160
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-14779 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-14779
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.16 }} -0.00%
score
0.51256
percentile