In the Linux kernel before 4.1.4, a buffer overflow occurs when checking userspace params in drivers/media/dvb-frontends/cx24116.c. The maximum size for a DiSEqC command is 6, according to the userspace API. However, the code allows larger values such as 23.
https://github.com/torvalds/linux/commit/1fa2337a315a2448c5434f41e00d56b01a22283c
https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.4
Source: MITRE
Published: 2019-07-27
Updated: 2019-12-11
Type: CWE-125
Base Score: 4.9
Vector: AV:L/AC:L/Au:N/C:C/I:N/A:N
Impact Score: 6.9
Exploitability Score: 3.9
Severity: MEDIUM
Base Score: 5.5
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM