CVE-2021-3404
Gentoo Linux Security Advisory 202405-24
Severity Score
7.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
In ytnef 1.9.3, the SwapWord function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a heap buffer overflow which can be triggered via a crafted file.
En ytnef versión 1.9.3, la función SwapWord en la biblioteca lib/ytnef.c permite a atacantes remotos provocar una denegación de servicio (y potencialmente la ejecución de código) debido a un desbordamiento del búfer de pila que puede activarse por medio de un archivo diseñado
Multiple vulnerabilities have been discovered in ytnef, the worst of which could potentially lead to remote code execution. Versions greater than or equal to 2.0 are affected.
*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
- 2021-02-09 CVE Reserved
- 2021-03-04 CVE Published
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- 2025-06-21 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
- CWE-787: Out-of-bounds Write
CAPEC
References (2)
| URL | Tag | Source |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1926965 | Issue Tracking |
| URL | Date | SRC |
|---|---|---|
| https://github.com/Yeraze/ytnef/issues/86 | 2024-08-03 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Ytnef Project Search vendor "Ytnef Project" | Ytnef Search vendor "Ytnef Project" for product "Ytnef" | 1.9.3 Search vendor "Ytnef Project" for product "Ytnef" and version "1.9.3" | - |
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
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 33 Search vendor "Fedoraproject" for product "Fedora" and version "33" | - |
Affected
| ||||||