CVE-2021-39923

2021-11-1916:31:03

GitLab

www.cve.org

pnrp dissector

denial of service

wireshark 3.4.0

wireshark 3.4.9

wireshark 3.2.0

wireshark 3.2.17

packet injection

crafted capture file

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.8

Confidence

High

EPSS

0.002

Percentile

58.2%

JSON

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

CNA Affected

[
  {
    "product": "Wireshark",
    "vendor": "Wireshark Foundation",
    "versions": [
      {
        "status": "affected",
        "version": ">=3.2.0, <3.2.18"
      },
      {
        "status": "affected",
        "version": ">=3.4.0, <3.4.10"
      }
    ]
  }
]