CVE-2021-42779
Gentoo Linux Security Advisory 202209-03
Severity Score
5.3
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A heap use after free issue was found in Opensc before version 0.22.0 in sc_file_valid.
Se encontró un problema de uso de memoria previamente liberada de la pila en Opensc versiones anteriores a 0.22.0, en la función sc_file_valid
An update that solves four vulnerabilities and has one errata is now available. This update for opensc fixes the following issues. Stack buffer overflow issues in various places. Fixed multiple heap buffer overflows in pkcs15-oberthur.c. Fixed use after return in insert_pin. Fixed use after free in sc_file_valid.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-10-21 CVE Reserved
- 2022-04-12 CVE Published
- 2024-08-04 CVE Updated
- 2025-05-27 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-416: Use After Free
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2023/06/msg00025.html | Mailing List |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843 | 2023-06-21 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2016086 | 2023-06-21 | |
| https://github.com/OpenSC/OpenSC/commit/1db88374 | 2023-06-21 |
| URL | Date | SRC |
|---|---|---|
| https://security.gentoo.org/glsa/202209-03 | 2023-06-21 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Opensc Project Search vendor "Opensc Project" | Opensc Search vendor "Opensc Project" for product "Opensc" | < 0.22.0 Search vendor "Opensc Project" for product "Opensc" and version " < 0.22.0" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 33 Search vendor "Fedoraproject" for product "Fedora" and version "33" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0" | - |
Affected
| ||||||