Memory leak in Linux kernel - CVE-2021-46924

Vulnerability identifier: #VU88212

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-2021-46924

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 in drivers/nfc/st21nfca/i2c.c. A local user can perform a denial of service attack.

Linux kernel
openEuler
Dell Data Protection Central
PowerProtect DP Series Appliance (IDPA)
Storage Resource Manager
EMC Cloud Tiering Appliance
bpftool
kernel
kernel-devel
perf-debuginfo
perf
python2-perf
kernel-source
python3-perf-debuginfo
python3-perf
kernel-tools-debuginfo
kernel-tools
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 4.14.261, 4.19.224, 5.4.170, 5.10.90, 5.15.13, 5.16
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/38c3e320e7ff46f2dc67bc5045333e63d9f8918d
• https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349
• https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b
• https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4
• https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe
• https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.261
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.224
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.90
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.13
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.170

• Memory leak in Linux kernel st21nfca 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
• Multiple vulnerabilities in Dell Storage Resource Manager (SRM) and Dell Storage Monitoring and Reporting (SMR)
• Multiple vulnerabilities in Dell Data Protection Central