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Vulnerability · Published May 22, 2024 · Assigned by Linux

CVE-2021-47443NFC: digital: fix possible memory leak in digital_tg_listen_mdaa()

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 86.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: NFC: digital: fix possible memory leak in digital_tg_listen_mdaa() 'params' is allocated in digital_tg_listen_mdaa(), but not free when digital_send_cmd() failed, which will cause memory leak. Fix it by freeing 'params' if digital_send_cmd() return failed.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.14.16-1DEBIAN-CVE-2021-47443
Debian:13linux5.14.16-1DEBIAN-CVE-2021-47443
Debian:14linux5.14.16-1DEBIAN-CVE-2021-47443
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2021-47443
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2021-47443
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2021-47443

Affected products (as reported)

VendorProductVersions
Linux Linux 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 – before 429054ec51e648d241a7e0b465cf44f6633334c51c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 – before a67d47e32c91e2b10402cb8c081774cbf08edb2e1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 – before b7b023e6ff567e991c31cd425b0e1d16779c938b1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 – before 9881b0c860649f27ef2565deef011e516390f4161c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 – before 7ab488d7228a9dceb2456867f1f0919decf6efed1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 – before 3f2960b39f22e26cf8addae93c3f5884d1c183c91c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 – before 564249219e5b5673a8416b5181875d828c3f1e8c1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 – before 58e7dcc9ca29c14e44267a4d0ea61e3229124907
Linux Linux 3.13

References