vulnerability
Ubuntu: (CVE-2019-18675): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | Nov 25, 2019 | Nov 19, 2024 | Sep 1, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Nov 25, 2019
Added
Nov 19, 2024
Modified
Sep 1, 2025
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.
Solutions
ubuntu-upgrade-linuxubuntu-upgrade-linux-awsubuntu-upgrade-linux-azureubuntu-upgrade-linux-fipsubuntu-upgrade-linux-gcpubuntu-upgrade-linux-hweubuntu-upgrade-linux-kvmubuntu-upgrade-linux-lts-xenialubuntu-upgrade-linux-oemubuntu-upgrade-linux-raspi2ubuntu-upgrade-linux-snapdragon
References
- CVE-2019-18675
- https://attackerkb.com/topics/CVE-2019-18675
- CWE-190
- URL-https://deshal3v.github.io/blog/kernel-research/mmap_exploitation
- URL-https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/usb/cpia2/cpia2_core.c
- URL-https://lore.kernel.org/lkml/[email protected]/
- URL-https://lore.kernel.org/lkml/[email protected]/
- URL-https://www.cve.org/CVERecord?id=CVE-2019-18675
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