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CVE-2021-39926

Good to know:

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Date: November 18, 2021

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

Language: C

Severity Score

Related Resources (14)

https://www.debian.org/security/2021/dsa-5019
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/
https://www.wireshark.org/security/wnpa-sec-2021-08.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39926.json
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/
https://security-tracker.debian.org/tracker/CVE-2021-39926
https://security.alpinelinux.org/vuln/CVE-2021-39926
https://nvd.nist.gov/vuln/detail/CVE-2021-39926
https://gitlab.com/wireshark/wireshark/-/issues/17649
https://security.gentoo.org/glsa/202210-04
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-39926
https://www.mend.io/vulnerability-database/CVE-2021-39926

Severity Score

Weakness Type (CWE)

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CWE-120

Top Fix

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Upgrade Version

Upgrade to version v3.4.10,wireshark-3.4.10

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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