CVEvulnerability
CVE-2019-18675
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-11-25
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-190
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.
Affected configurations
• linux linux kernel (< 3.16.60)
• linux linux kernel (>= 3.17 < 3.18.113)
• linux linux kernel (>= 3.19 < 4.4.137)
• linux linux kernel (>= 4.5 < 4.9.108)
• linux linux kernel (>= 4.10 < 4.14.49)
• linux linux kernel (>= 4.15 < 4.16.15)
Related
Weakness · CWE (1)
- CWE-190 Integer Overflow or Wraparound weakness
References
- https://deshal3v.github.io/blog/kernel-research/mmap_exploitation Exploit, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=be83bbf806822b1b89e0a0f23cd87cddc409e429 Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/usb/cpia2/cpia2_core.c Vendor Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/ Third Party Advisory
- https://deshal3v.github.io/blog/kernel-research/mmap_exploitation Exploit, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=be83bbf806822b1b89e0a0f23cd87cddc409e429 Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/usb/cpia2/cpia2_core.c Vendor Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/ Third Party Advisory