CVE-2022-33743
Last modified
CVE-2022-33743 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed.. EPSS estimates a 0.34% chance of exploitation in the next 30 days.
Description
network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.9, <= 5.18 |
| Xen | Xen | All versions |
| Debian | Debian Linux | 11.0 |
References
- http://www.openwall.com/lists/oss-security/2022/07/05/5Mailing List, Patch, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-405.htmlPatch, Vendor Advisory
- https://www.debian.org/security/2022/dsa-5191Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-405.txtVendor Advisory
- http://www.openwall.com/lists/oss-security/2022/07/05/5Mailing List, Patch, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-405.htmlPatch, Vendor Advisory
- https://www.debian.org/security/2022/dsa-5191Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-405.txtVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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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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