cve/2021/CVE-2021-33034.md

CVE-2021-33034

Description

In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.

POC

Reference

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5c4c8c9544099bb9043a10a5318130a943e32fc3

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/NaInSec/CVE-PoC-in-GitHub
• https://github.com/SYRTI/POC_to_review
• https://github.com/Trinadh465/device_renesas_kernel_AOSP10_r33_CVE-2021-33034
• https://github.com/WhooAmii/POC_to_review
• https://github.com/nomi-sec/PoC-in-GitHub
• https://github.com/trhacknon/Pocingit
• https://github.com/zecool/cve