CVE-2021-39926
HIGH severity · CVSS 7.5 · Buffer overflow
7.5CVSS HIGH
Summary
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
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)8%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://gitlab.com/wireshark/wireshark/-/issues/17649 ↗
Additional information
- NVD record
- https://gitlab.com/wireshark/wireshark/-/issues/17649Patch
- https://www.wireshark.org/security/wnpa-sec-2021-08.htmlAdvisory
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39926.jsonAdvisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/
- https://security.gentoo.org/glsa/202210-04Advisory
- https://www.debian.org/security/2021/dsa-5019Advisory