Log in Start free

Vulnerability · Published Mar 15, 2024 · Assigned by Linux

CVE-2021-47121net: caif: fix memory leak in cfusbl_device_notify

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 14% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 86.4% 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: net: caif: fix memory leak in cfusbl_device_notify In case of caif_enroll_dev() fail, allocated link_support won't be assigned to the corresponding structure. So simply free allocated pointer in case of error.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.10.46-1DEBIAN-CVE-2021-47121
Debian:13linux5.10.46-1DEBIAN-CVE-2021-47121
Debian:14linux5.10.46-1DEBIAN-CVE-2021-47121
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2021-47121
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2021-47121
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2021-47121

Affected products (as reported)

VendorProductVersions
Linux Linux 7ad65bf68d705b445ef10b77ab50dab22be185ee – before cc302e30a504e6b60a9ac8df7988646f46cd02947ad65bf68d705b445ef10b77ab50dab22be185ee – before 81afc61cb6e2b553f2c5f992fa79e0ae738571417ad65bf68d705b445ef10b77ab50dab22be185ee – before e8b37f5009ea7095529790f022859711e6939c767ad65bf68d705b445ef10b77ab50dab22be185ee – before 9ea0ab48e755d8f29fe89eb235fb86176fdb597f7ad65bf68d705b445ef10b77ab50dab22be185ee – before 4d94f530cd24c85aede6e72b8923f371b45d68867ad65bf68d705b445ef10b77ab50dab22be185ee – before 46403c1f80b0d3f937ff9c4f5edc63bb64bc50517ad65bf68d705b445ef10b77ab50dab22be185ee – before dde8686985ec24d6b00487080a906609bd613ea17ad65bf68d705b445ef10b77ab50dab22be185ee – before 7f5d86669fa4d485523ddb1d212e0a2d90bd62bb
Linux Linux 3.3

References