CVE-2021-39923
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Large loop in the PNRP dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file
Un gran bucle en el disector PNRP en Wireshark versiones 3.4.0 a 3.4.9 y versiones 3.2.0 a 3.2.17 permite la denegación de servicio a través de la inyección de paquetes o un archivo de captura manipulado
*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
- 2021-08-23 CVE Reserved
- 2021-11-19 CVE Published
- 2024-08-04 CVE Updated
- 2024-09-27 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-834: Excessive Iteration
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39923.json | Third Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html | Mailing List |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://gitlab.com/wireshark/wireshark/-/issues/17684 | 2022-03-09 |
| URL | Date | SRC |
|---|---|---|
| https://www.debian.org/security/2021/dsa-5019 | 2022-03-09 | |
| https://www.wireshark.org/security/wnpa-sec-2021-11.html | 2022-03-09 |
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" | >= 3.2.0 <= 3.2.17 Search vendor "Wireshark" for product "Wireshark" and version " >= 3.2.0 <= 3.2.17" | - |
Affected
| ||||||
| Wireshark Search vendor "Wireshark" | Wireshark Search vendor "Wireshark" for product "Wireshark" | >= 3.4.0 <= 3.4.9 Search vendor "Wireshark" for product "Wireshark" and version " >= 3.4.0 <= 3.4.9" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||