Yüksek CVSS 7.8 PoC var
CVE-2023-4921: Linux Kernel: serbest bırakılmış belleğin kullanımı
Açıklama (NVD)
A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue(). We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8.
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
- %0,42 (yüzdelik 36)
- CWE
- CWE-416
- Yama
- Mevcut
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| linux-linux-kernel | 3.8 | — | 4.14.326 |
| 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 | — | 6.1.54 |
| linux-linux-kernel | 6.2 | — | 6.5.4 |
| debian-debian-linux | 10.0 | 10.0 | — |