SB2024053042 - Memory leak in Linux kernel nfc
Published: May 30, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024053042
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-2021-47443)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the digital_tg_configure_hw() and digital_tg_listen_mdaa() functions in net/nfc/digital_core.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/429054ec51e648d241a7e0b465cf44f6633334c5
- https://git.kernel.org/stable/c/a67d47e32c91e2b10402cb8c081774cbf08edb2e
- https://git.kernel.org/stable/c/b7b023e6ff567e991c31cd425b0e1d16779c938b
- https://git.kernel.org/stable/c/9881b0c860649f27ef2565deef011e516390f416
- https://git.kernel.org/stable/c/7ab488d7228a9dceb2456867f1f0919decf6efed
- https://git.kernel.org/stable/c/3f2960b39f22e26cf8addae93c3f5884d1c183c9
- https://git.kernel.org/stable/c/564249219e5b5673a8416b5181875d828c3f1e8c
- https://git.kernel.org/stable/c/58e7dcc9ca29c14e44267a4d0ea61e3229124907
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.252
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.213
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.290
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.288
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.75
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.155