Vulnerability Description
Crash in USB HID protocol dissector and possibly other dissectors in Wireshark 3.4.0 and 3.2.0 to 3.2.8 allows denial of service via packet injection or crafted capture file.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wireshark | Wireshark | >= 3.2.0, <= 3.2.8 |
| Fedoraproject | Fedora | 32 |
| Debian | Debian Linux | 9.0 |
| Oracle | Zfs Storage Appliance Kit | 8.8 |
Related Weaknesses (CWE)
References
- https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26421.jsonThird Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/16958ExploitIssue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00008.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202101-12Third Party Advisory
- https://www.oracle.com/security-alerts/cpuApr2021.htmlPatchThird Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2020-17.htmlVendor Advisory
- https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26421.jsonThird Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/16958ExploitIssue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00008.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202101-12Third Party Advisory
- https://www.oracle.com/security-alerts/cpuApr2021.htmlPatchThird Party Advisory
FAQ
What is CVE-2020-26421?
CVE-2020-26421 is a vulnerability with a CVSS score of 4.2 (MEDIUM). Crash in USB HID protocol dissector and possibly other dissectors in Wireshark 3.4.0 and 3.2.0 to 3.2.8 allows denial of service via packet injection or crafted capture file.
How severe is CVE-2020-26421?
CVE-2020-26421 has been rated MEDIUM with a CVSS base score of 4.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-26421?
Check the references section above for vendor advisories and patch information. Affected products include: Wireshark Wireshark, Fedoraproject Fedora, Debian Debian Linux, Oracle Zfs Storage Appliance Kit.