cve/2019/CVE-2019-18885.md

CVE-2019-18885

Description

fs/btrfs/volumes.c in the Linux kernel before 5.1 allows a btrfs_verify_dev_extents NULL pointer dereference via a crafted btrfs image because fs_devices->devices is mishandled within find_device, aka CID-09ba3bc9dd15.

POC

Reference

• http://packetstormsecurity.com/files/156185/Kernel-Live-Patch-Security-Notice-LSN-0062-1.html
• https://github.com/bobfuzzer/CVE-2019-18885
• https://usn.ubuntu.com/4287-2/
• https://www.oracle.com/security-alerts/cpuApr2021.html

Github

• https://github.com/0xT11/CVE-POC
• https://github.com/developer3000S/PoC-in-GitHub
• https://github.com/hectorgie/PoC-in-GitHub