CVSS 7.8 · High EPSS 0,28%
Kerentanan Use After Free pada linux kernel, debian linux. Skor CVSS 3.1 7.8 (High) menurut NVD.
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 2.6.12 hingga sebelum 4.14.327 |
| linux | linux kernel | Versi 4.15 hingga sebelum 4.19.295 |
| linux | linux kernel | Versi 4.20 hingga sebelum 5.4.257 |
| linux | linux kernel | Versi 5.5 hingga sebelum 5.10.195 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.15.132 |
| linux | linux kernel | Versi 5.16 hingga sebelum 6.1.53 |
| linux | linux kernel | Versi 6.2 hingga sebelum 6.4.16 |
| linux | linux kernel | Versi 6.5 hingga sebelum 6.5.3 |
| debian | debian linux | Versi 10.0 |