CVE-2021-4182
Gentoo Linux Security Advisory 202210-04
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
Crash in the RFC 7468 dissector in Wireshark 3.6.0 and 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file
Un bloqueo en RFC 7468 dissector en Wireshark versiones 3.6.0 y 3.4.0 a 3.4.10, permite una denegación de servicio por inyección de paquetes o por un archivo de captura diseñado.
It was discovered that Wireshark did not correctly handle recursion. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Roman Donchenko discovered that Wireshark did not correctly handle parsing certain files. If a user or system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-12-27 CVE Reserved
- 2021-12-30 CVE Published
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- 2025-06-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
CAPEC
References (7)
| URL | Tag | Source |
|---|---|---|
| https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4182.json | Third Party Advisory |
| URL | Date | SRC |
|---|---|---|
| https://gitlab.com/wireshark/wireshark/-/issues/17801 | 2024-08-03 |
| URL | Date | SRC |
|---|---|---|
| https://www.oracle.com/security-alerts/cpuapr2022.html | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Wireshark Search vendor "Wireshark" | Wireshark Search vendor "Wireshark" for product "Wireshark" | >= 3.4.0 < 3.4.11 Search vendor "Wireshark" for product "Wireshark" and version " >= 3.4.0 < 3.4.11" | - |
Affected
| ||||||
| Wireshark Search vendor "Wireshark" | Wireshark Search vendor "Wireshark" for product "Wireshark" | 3.6.0 Search vendor "Wireshark" for product "Wireshark" and version "3.6.0" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 34 Search vendor "Fedoraproject" for product "Fedora" and version "34" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 35 Search vendor "Fedoraproject" for product "Fedora" and version "35" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Http Server Search vendor "Oracle" for product "Http Server" | 12.2.1.3.0 Search vendor "Oracle" for product "Http Server" and version "12.2.1.3.0" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Http Server Search vendor "Oracle" for product "Http Server" | 12.2.1.4.0 Search vendor "Oracle" for product "Http Server" and version "12.2.1.4.0" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Zfs Storage Appliance Kit Search vendor "Oracle" for product "Zfs Storage Appliance Kit" | 8.8 Search vendor "Oracle" for product "Zfs Storage Appliance Kit" and version "8.8" | - |
Affected
| ||||||