CVEvulnerability
CVE-2021-39923
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-11-19
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-834
Description
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
Affected configurations
• wireshark wireshark (>= 3.2.0 <= 3.2.17)
• wireshark wireshark (>= 3.4.0 <= 3.4.9)
• debian debian linux 10.0
• debian debian linux 11.0
• debian debian linux 9.0
Related
Weakness · CWE (1)
- CWE-834 Excessive Iteration weakness
References
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39923.json Third Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/17684 Issue Tracking, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html Mailing List, Third Party Advisory
- https://www.debian.org/security/2021/dsa-5019 Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2021-11.html Vendor Advisory
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39923.json Third Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/17684 Issue Tracking, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html Mailing List, Third Party Advisory
- https://www.debian.org/security/2021/dsa-5019 Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2021-11.html Vendor Advisory