Memory leak in Linux kernel - CVE-2020-36777

Vulnerability identifier: #VU87987

CSH Severity: Low

CVSS v4 BT: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-36777

CWE-ID: CWE-401

Exploitation vector: Local access

Exploit availability: No public exploit available

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.

Linux kernel
Anolis OS
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for Real Time
openEuler
Dell Data Protection Central
PowerProtect DP Series Appliance (IDPA)
Technical Support Appliance
IBM Cloud Pak for Watson AIOps
Storage Resource Manager
EMC Cloud Tiering Appliance
Juniper Secure Analytics (JSA)
IBM Qradar SIEM
kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel-debug-modules-extra
bpftool
kernel
kernel-core
kernel-cross-headers
kernel-debug
kernel-debug-core
kernel-debug-devel
kernel-debug-modules
kernel-devel
kernel-headers
kernel-modules
kernel-modules-extra
kernel-tools
kernel-tools-libs
kernel-tools-libs-devel
perf
python3-perf
kernel-abi-stablelists
kernel-doc
perf-debuginfo
python2-perf
kernel-source
python3-perf-debuginfo
kernel-tools-debuginfo
kernel-tools-devel
python2-perf-debuginfo
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo
Dell EMC Storage Monitoring and Reporting (SMR)
Dell Secure Connect Gateway

Install update from vendor's website.

Linux kernel - addressed in versions 4.9.269, 4.14.233, 4.19.191, 5.4.118, 5.10.36, 5.11.20, 5.12.3, 5.13
Juniper Secure Analytics (JSA) - update to 7.5.0 UP9 IF02
IBM Qradar SIEM - update to 7.5.0 Update Pack 9 IF01
Technical Support Appliance - update to 3.0.1
IBM Cloud Pak for Watson AIOps - update to 4.6.0
kernel (Red Hat package) - update to 4.18.0-553.5.1.el8_10
kernel-rt (Red Hat package) - update to 4.18.0-553.5.1.rt7.346.el8_10
kernel-debug-modules-extra - update to 4.18.0-553.5.1.0.1
bpftool - update to 4.18.0-553.5.1.0.1
kernel - update to 4.18.0-553.5.1.0.1
kernel-core - update to 4.18.0-553.5.1.0.1
kernel-cross-headers - update to 4.18.0-553.5.1.0.1
kernel-debug - update to 4.18.0-553.5.1.0.1
kernel-debug-core - update to 4.18.0-553.5.1.0.1
kernel-debug-devel - update to 4.18.0-553.5.1.0.1
kernel-debug-modules - update to 4.18.0-553.5.1.0.1
kernel-devel - update to 4.18.0-553.5.1.0.1
kernel-headers - update to 4.18.0-553.5.1.0.1
kernel-modules - update to 4.18.0-553.5.1.0.1
kernel-modules-extra - update to 4.18.0-553.5.1.0.1
kernel-tools - update to 4.18.0-553.5.1.0.1
kernel-tools-libs - update to 4.18.0-553.5.1.0.1
kernel-tools-libs-devel - update to 4.18.0-553.5.1.0.1
perf - update to 4.18.0-553.5.1.0.1
python3-perf - update to 4.18.0-553.5.1.0.1
kernel-abi-stablelists - update to 4.18.0-553.5.1.0.1
kernel-doc - update to 4.18.0-553.5.1.0.1
bpftool - addressed in versions 4.19.90-2404.1.0.0245, 4.19.90-2404.1.0.0272
kernel - addressed in versions 4.19.90-2404.1.0.0245, 4.19.90-2404.1.0.0272
kernel-devel - addressed in versions 4.19.90-2404.1.0.0245, 4.19.90-2404.1.0.0272
perf-debuginfo - addressed in versions 4.19.90-2404.1.0.0245, 4.19.90-2404.1.0.0272
perf - addressed in versions 4.19.90-2404.1.0.0245, 4.19.90-2404.1.0.0272
python2-perf - addressed in versions 4.19.90-2404.1.0.0245, 4.19.90-2404.1.0.0272
kernel-source - addressed in versions 4.19.90-2404.1.0.0245, 4.19.90-2404.1.0.0272
python3-perf-debuginfo - addressed in versions 4.19.90-2404.1.0.0245, 4.19.90-2404.1.0.0272
python3-perf - addressed in versions 4.19.90-2404.1.0.0245, 4.19.90-2404.1.0.0272
kernel-tools-debuginfo - addressed in versions 4.19.90-2404.1.0.0245, 4.19.90-2404.1.0.0272
kernel-tools - addressed in versions 4.19.90-2404.1.0.0245, 4.19.90-2404.1.0.0272
kernel-tools-devel - addressed in versions 4.19.90-2404.1.0.0245, 4.19.90-2404.1.0.0272
python2-perf-debuginfo - addressed in versions 4.19.90-2404.1.0.0245, 4.19.90-2404.1.0.0272
kernel-debugsource - addressed in versions 4.19.90-2404.1.0.0245, 4.19.90-2404.1.0.0272
kernel-debuginfo - addressed in versions 4.19.90-2404.1.0.0245, 4.19.90-2404.1.0.0272
bpftool-debuginfo - addressed in versions 4.19.90-2404.1.0.0245, 4.19.90-2404.1.0.0272
Storage Resource Manager - update to 5.0.1.0
Dell EMC Storage Monitoring and Reporting (SMR) - update to 5.0.1.0
Dell Secure Connect Gateway - update to 5.24.00.14
EMC Cloud Tiering Appliance - update to 13.2.0.2.29

• 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

• Denial of service in Linux kernel dvbdev driver
• openEuler 20.03 LTS SP1 update for kernel
• openEuler 20.03 LTS SP4 update for kernel
• Multiple vulnerabilities in Dell Secure Connect Gateway
• Multiple vulnerabilities in Dell Cloud Tiering Appliance
• Red Hat Enterprise Linux 8 update for kernel-rt
• Red Hat Enterprise Linux 8 update for kernel
• Multiple vulnerabilities in IBM Cloud Pak for AIOps
• Multiple vulnerabilities in Dell Storage Resource Manager (SRM) and Dell Storage Monitoring and Reporting (SMR)
• Multiple vulnerabilities in Dell Data Protection Central
• Multiple vulnerabilities in IBM QRadar SIEM
• Multiple vulnerabilities in Juniper Secure Analytics (JSA)
• Multiple vulnerabilities in IBM Technical Support Appliance
• Anolis OS update for kernel