CVE-2021-22222
HIGHCVSS 7.5/10EPSS 1.79%
Last modified
CVE-2021-22222 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Infinite loop in DVB-S2-BB dissector in Wireshark 3.4.0 to 3.4.5 allows denial of service via packet injection or crafted capture file. EPSS estimates a 1.79% chance of exploitation in the next 30 days.
Description
Infinite loop in DVB-S2-BB dissector in Wireshark 3.4.0 to 3.4.5 allows denial of service via packet injection or crafted capture file
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Wireshark | Wireshark | >= 3.4.0, <= 3.4.5 |
| Oracle | Enterprise Manager Ops Center | 12.4.0.0 |
| Oracle | Instantis Enterprisetrack | 17.1 |
| Oracle | Instantis Enterprisetrack | 17.2 |
| Oracle | Instantis Enterprisetrack | 17.3 |
| Oracle | Zfs Storage Appliance Kit | 8.8 |
| Debian | Debian Linux | 10.0 |
| Debian | Debian Linux | 11.0 |
References
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22222.jsonThird Party Advisory
- https://gitlab.com/wireshark/wireshark/-/merge_requests/3130Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202107-21Third Party Advisory
- https://www.debian.org/security/2021/dsa-5019Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2021-05.htmlVendor Advisory
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22222.jsonThird Party Advisory
- https://gitlab.com/wireshark/wireshark/-/merge_requests/3130Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202107-21Third Party Advisory
- https://www.debian.org/security/2021/dsa-5019Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2021-05.htmlVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-22222?
Infinite loop in DVB-S2-BB dissector in Wireshark 3.4.0 to 3.4.5 allows denial of service via packet injection or crafted capture file
How severe is CVE-2021-22222?
CVE-2021-22222 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.79% probability of exploitation in the next 30 days.
How do I fix CVE-2021-22222?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-22222?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST