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CVE-2019-18675 Details
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://deshal3v.github.io/blog/kernel-research/mmap_exploitation | CVE | ExploitThird Party Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=be83bbf806822b1b89e0a0f23cd87cddc409e429 | CVE | Vendor Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/usb/cpia2/cpia2_core.c | CVE | Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20200103-0001/ | CVE | Third Party Advisory |
| https://deshal3v.github.io/blog/kernel-research/mmap_exploitation | [email protected] | ExploitThird Party Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=be83bbf806822b1b89e0a0f23cd87cddc409e429 | [email protected] | Vendor Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/usb/cpia2/cpia2_core.c | [email protected] | Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20200103-0001/ | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-190 | Integer Overflow or Wraparound | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | < 3.16.60 >= 3.17, < 3.18.113 >= 3.19, < 4.4.137 >= 4.5, < 4.9.108 >= 4.10, < 4.14.49 >= 4.15, < 4.16.15 |
CPE
Remediation
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Change History
7 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Feb 24, 2023 | Modified Analysis | [email protected] |
| Jan 15, 2020 | CVE Modified | [email protected] |
| Jan 3, 2020 | CVE Modified | [email protected] |
| Dec 9, 2019 | Initial Analysis | [email protected] |