CVE-2021-42781
Opensc Heap Buffer Overflow Vulnerability
Description
Heap buffer overflow issues were found in Opensc before version 0.22.0 in pkcs15-oberthur.c that could potentially crash programs using the library.
INFO
Published Date :
April 18, 2022, 5:15 p.m.
Last Modified :
June 21, 2023, 2:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-42781 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2021-42781
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-2021-42781.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2016439 | Issue Tracking Patch Third Party Advisory |
| https://github.com/OpenSC/OpenSC/commit/05648b06 | Patch Third Party Advisory |
| https://github.com/OpenSC/OpenSC/commit/17d8980c | Patch Third Party Advisory |
| https://github.com/OpenSC/OpenSC/commit/40c50a3a | Patch Third Party Advisory |
| https://github.com/OpenSC/OpenSC/commit/5d4daf6c | Patch Third Party Advisory |
| https://github.com/OpenSC/OpenSC/commit/cae5c71f | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2023/06/msg00025.html | |
| https://security.gentoo.org/glsa/202209-03 | Third Party 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).
None
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-42781 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-42781 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]
Jun. 21, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/06/msg00025.html [No Types Assigned] -
Modified Analysis by [email protected]
Sep. 29, 2022
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202209-03 No Types Assigned https://security.gentoo.org/glsa/202209-03 Third Party Advisory -
CVE Modified by [email protected]
Sep. 07, 2022
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202209-03 [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 25, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2016439 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2016439 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://github.com/OpenSC/OpenSC/commit/05648b06 No Types Assigned https://github.com/OpenSC/OpenSC/commit/05648b06 Patch, Third Party Advisory Changed Reference Type https://github.com/OpenSC/OpenSC/commit/17d8980c No Types Assigned https://github.com/OpenSC/OpenSC/commit/17d8980c Patch, Third Party Advisory Changed Reference Type https://github.com/OpenSC/OpenSC/commit/40c50a3a No Types Assigned https://github.com/OpenSC/OpenSC/commit/40c50a3a Patch, Third Party Advisory Changed Reference Type https://github.com/OpenSC/OpenSC/commit/5d4daf6c No Types Assigned https://github.com/OpenSC/OpenSC/commit/5d4daf6c Patch, Third Party Advisory Changed Reference Type https://github.com/OpenSC/OpenSC/commit/cae5c71f No Types Assigned https://github.com/OpenSC/OpenSC/commit/cae5c71f Patch, Third Party Advisory Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:a:opensc_project:opensc:*:*:*:*:*:*:*:* versions up to (excluding) 0.22.0 Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-42781 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-2021-42781
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.29 }} 0.05%
score
0.69832
percentile