SB2024040236 - Denial of service in Linux kernel dvbdev driver
Published: April 2, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024040236
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Memory leak (CVE-ID: CVE-2020-36777)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the dvb_media_device_free() function in drivers/media/dvb-core/dvbdev.c. A local user can crash the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/06854b943e0571ccbd7ad0a529babed1a98ff275
- https://git.kernel.org/stable/c/32168ca1f123316848fffb85d059860adf3c409f
- https://git.kernel.org/stable/c/cd89f79be5d553c78202f686e8e4caa5fbe94e98
- https://git.kernel.org/stable/c/9185b3b1c143b8da409c19ac5a785aa18d67a81b
- https://git.kernel.org/stable/c/43263fd43083e412311fa764cd04a727b0c6a749
- https://git.kernel.org/stable/c/9ad15e214fcd73694ea51967d86055f47b802066
- https://git.kernel.org/stable/c/cede24d13be6c2a62be6d7ceea63c2719b0cfa82
- https://git.kernel.org/stable/c/bf9a40ae8d722f281a2721779595d6df1c33a0bf
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.233
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.191
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.269
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.36
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.20
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.118