7.8

CVE-2019-18675

Exploit

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.

Data is provided by the National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 3.16.60
Linux ≫ Linux Kernel Version >= 3.17 < 3.18.113
Linux ≫ Linux Kernel Version >= 3.19 < 4.4.137
Linux ≫ Linux Kernel Version >= 4.5 < 4.9.108
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.49
Linux ≫ Linux Kernel Version >= 4.15 < 4.16.15
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.13% 0.294
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 7.2 3.9 10
AV:L/AC:L/Au:N/C:C/I:C/A:C
CWE-190 Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.