Vulnerability Description
Buffer overflow in the Bluetooth HCI_ISO dissector in Wireshark 3.4.0 to 3.4.9 allows denial of service via packet injection or crafted capture file
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wireshark | Wireshark | >= 3.4.0, <= 3.4.9 |
| Fedoraproject | Fedora | 34 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39926.jsonThird Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/17649ExploitIssue TrackingPatch
- 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/202210-04Third Party Advisory
- https://www.debian.org/security/2021/dsa-5019Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2021-08.htmlVendor Advisory
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39926.jsonThird Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/17649ExploitIssue TrackingPatch
- 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/202210-04Third Party Advisory
- https://www.debian.org/security/2021/dsa-5019Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2021-08.htmlVendor Advisory
FAQ
What is CVE-2021-39926?
CVE-2021-39926 is a vulnerability with a CVSS score of 7.5 (HIGH). Buffer overflow in the Bluetooth HCI_ISO dissector in Wireshark 3.4.0 to 3.4.9 allows denial of service via packet injection or crafted capture file
How severe is CVE-2021-39926?
CVE-2021-39926 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-39926?
Check the references section above for vendor advisories and patch information. Affected products include: Wireshark Wireshark, Fedoraproject Fedora, Debian Debian Linux.