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.

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.

ID Vendor Product Action
1 Redhat enterprise_linux
1 Fedoraproject fedora
1 Opensc_project opensc
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

Updated: 1 month, 4 weeks ago
0 stars 0 fork 0 watcher
Born at : July 25, 2024, 11:34 p.m. This repo has been linked 2 different CVEs too.

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:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
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:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.21 }} 0.03%

score

0.58578

percentile

CVSS31 - Vulnerability Scoring System
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