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Vulnerability · Published May 21, 2024 · Assigned by Linux

CVE-2021-47270usb: fix various gadgets null ptr deref on 10gbps cabling.

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 NVD)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: usb: fix various gadgets null ptr deref on 10gbps cabling. This avoids a null pointer dereference in f_{ecm,eem,hid,loopback,printer,rndis,serial,sourcesink,subset,tcm} by simply reusing the 5gbps config for 10gbps.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.10.46-1DEBIAN-CVE-2021-47270
Debian:13linux5.10.46-1DEBIAN-CVE-2021-47270
Debian:14linux5.10.46-1DEBIAN-CVE-2021-47270
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2021-47270
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2021-47270
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2021-47270

Affected products (as reported)

VendorProductVersions
Linux Linux eaef50c760576bca70b87fdc26eb87a3660529f8 – before beb1e67a5ca8d69703c776db9000527f44c0c93ceaef50c760576bca70b87fdc26eb87a3660529f8 – before 8cd5f45c1b769e3e9e0f4325dd08b6c3749dc7eeeaef50c760576bca70b87fdc26eb87a3660529f8 – before 10770d2ac0094b053c8897d96d7b2737cd72f7c5eaef50c760576bca70b87fdc26eb87a3660529f8 – before b4903f7fdc484628d0b8022daf86e2439d3ab4dbeaef50c760576bca70b87fdc26eb87a3660529f8 – before 4b289a0f3033f465b4fd51ba995251a7867a2aa2eaef50c760576bca70b87fdc26eb87a3660529f8 – before f17aae7c4009160f0630a91842a281773976a5bceaef50c760576bca70b87fdc26eb87a3660529f8 – before 90c4d05780d47e14a50e11a7f17373104cd47d25
Linux Linux 4.6

References