^{CVE-2023-4623:}A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling pointer that can cause a use-after-free. We recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f.

Industry ExposureMost to least

This section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.

1. Manufacturing
   Manufacturing
2. Health Care & Social Assistance
   Health Care & Social Assistance
3. Public Administration
   Public Administration
4. Finance and Insurance
   Finance and Insurance
5. Professional, Scientific, & Technical Services
   Professional, Scientific, & Technical Services
6. Transportation & Warehousing
   Transportation & Warehousing
7. Retail Trade
   Retail Trade
8. Educational Services
   Educational Services
9. Utilities
   Utilities
10. Management of Companies & Enterprises
    Management of Companies & Enterprises
11. Other Services (except Public Administration)
    Other Services (except Public Administration)
12. Information
    Information
13. Arts, Entertainment & Recreation
    Arts, Entertainment & Recreation
14. Real Estate Rental & Leasing
    Real Estate Rental & Leasing
15. Agriculture, Forestry Fishing & Hunting
    Agriculture, Forestry Fishing & Hunting
16. Wholesale Trade
    Wholesale Trade
17. Accommodation & Food Services
    Accommodation & Food Services
18. Administrative, Support, Waste Management & Remediation Services
    Administrative, Support, Waste Management & Remediation Services
19. Construction
    Construction
20. Mining
    Mining