Yüksek CVSS 7.8
CVE-2023-4623: Linux Kernel: serbest bırakılmış belleğin kullanımı
Açıklama (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.
Özet bilgiler
- Ürün
- Linux Linux Kernel
- CVSS v3.1
- 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- %0,28 (yüzdelik 21)
- CWE
- CWE-416
- Yama
- Mevcut
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| linux-linux-kernel | 2.6.12 | — | 4.14.327 |
| linux-linux-kernel | 4.15 | — | 4.19.295 |
| linux-linux-kernel | 4.20 | — | 5.4.257 |
| linux-linux-kernel | 5.5 | — | 5.10.195 |
| linux-linux-kernel | 5.11 | — | 5.15.132 |
| linux-linux-kernel | 5.16 | — | 6.1.53 |
| linux-linux-kernel | 6.2 | — | 6.4.16 |
| linux-linux-kernel | 6.5 | — | 6.5.3 |
| debian-debian-linux | 10.0 | 10.0 | — |