CVE-2019-18675
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2019-18675
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-18675.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2019-18675
- Downstream
- Related
- Published
- 2019-11-25T14:15:12Z
- Modified
- 2025-08-09T19:01:28Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
The Linux kernel through 5.3.13 has a startoffset+size Integer Overflow in cpia2remapbuffer in drivers/media/usb/cpia2/cpia2core.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.
- References
-
- https://deshal3v.github.io/blog/kernel-research/mmap_exploitation
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=be83bbf806822b1b89e0a0f23cd87cddc409e429
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/usb/cpia2/cpia2_core.c
- https://security.netapp.com/advisory/ntap-20200103-0001/