CVEvulnerability
CVE-2021-39920
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-11-18
- 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-476
Description
NULL pointer exception in the IPPUSB dissector in Wireshark 3.4.0 to 3.4.9 allows denial of service via packet injection or crafted capture file
Affected configurations
• wireshark wireshark (>= 3.4.0 < 3.4.10)
• fedoraproject fedora 34
• fedoraproject fedora 35
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39920.json Third Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/17705 Exploit, Issue Tracking, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202210-04 Third Party Advisory
- https://www.debian.org/security/2021/dsa-5019 Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2021-15.html Vendor Advisory
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39920.json Third Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/17705 Exploit, Issue Tracking, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202210-04 Third Party Advisory
- https://www.debian.org/security/2021/dsa-5019 Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2021-15.html Vendor Advisory