cve/2019/CVE-2019-18675.md

CVE-2019-18675

Description

The Linux kernel through 5.3.13 has a start_offset+size Integer Overflow in cpia2_remap_buffer in drivers/media/usb/cpia2/cpia2_core.c because cpia2 has its own mmap implementation. This allows local users (with /dev/video0 access) to obtain read and write permissions on kernel physical pages, which can possibly result in a privilege escalation.

POC

Reference

• https://deshal3v.github.io/blog/kernel-research/mmap_exploitation
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=be83bbf806822b1b89e0a0f23cd87cddc409e429

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/deShal3v/Public-Vulnerabilities
• https://github.com/kdn111/linux-kernel-exploitation
• https://github.com/khanhdn111/linux-kernel-exploitation
• https://github.com/khanhdz-06/linux-kernel-exploitation
• https://github.com/khanhdz191/linux-kernel-exploitation
• https://github.com/khanhhdz/linux-kernel-exploitation
• https://github.com/khanhhdz06/linux-kernel-exploitation
• https://github.com/khanhnd123/linux-kernel-exploitation
• https://github.com/knd06/linux-kernel-exploitation
• https://github.com/ndk191/linux-kernel-exploitation
• https://github.com/ssr-111/linux-kernel-exploitation
• https://github.com/wkhnh06/linux-kernel-exploitation
• https://github.com/xairy/linux-kernel-exploitation