CVE-2021-39923

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2021-39923
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-11-19 17:15:00 UTC
Updated2022-03-09 21:42:00 UTC
DescriptionLarge 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

Risk And Classification

Problem Types: CWE-834

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 11.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Application Wireshark Wireshark All All All All
Application Wireshark Wireshark All All All All

References

ReferenceSourceLinkTags
[SECURITY] Fedora 34 Update: wireshark-3.6.0-1.fc34 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
Fuzz job crash output: fuzz-2021-11-01-6716.pcap (#17705) · Issues · Wireshark Foundation / wireshark · GitLab MISC gitlab.com
Debian -- Security Information -- DSA-5019-1 wireshark DEBIAN www.debian.org
2021/CVE-2021-39923.json · master · GitLab.org / cves · GitLab CONFIRM gitlab.com
Wireshark · wnpa-sec-2021-11 · PNRP dissector large loop MISC www.wireshark.org
Wireshark · wnpa-sec-2021-15 · IPPUSB dissector crash MISC www.wireshark.org
[SECURITY] [DLA 2849-1] wireshark security update MLIST lists.debian.org
[SECURITY] Fedora 35 Update: wireshark-3.6.0-1.fc35 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
Buildbot crash output: fuzz-2021-10-23-10060.pcap (#17684) · Issues · Wireshark Foundation / wireshark · GitLab MISC gitlab.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 178933 Debian Security Update for wireshark (DSA 5019-1)
  • 178957 Debian Security Update for wireshark (DLA 2849-1)
  • 180275 Debian Security Update for wireshark (CVE-2021-39923)
  • 282092 Fedora Security Update for wireshark (FEDORA-2021-97bd631e0a)
  • 282134 Fedora Security Update for wireshark (FEDORA-2021-3747cf6107)
  • 354338 Amazon Linux Security Advisory for wireshark : ALAS2022-2022-079
  • 354457 Amazon Linux Security Advisory for wireshark : ALAS2022-2022-226
  • 354540 Amazon Linux Security Advisory for wireshark : ALAS-2022-226
  • 355161 Amazon Linux Security Advisory for wireshark : ALAS2023-2023-038
  • 900924 Common Base Linux Mariner (CBL-Mariner) Security Update for wireshark (7411)
  • 902329 Common Base Linux Mariner (CBL-Mariner) Security Update for wireshark (7411-1)
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report