CVE-2021-47270
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-476 · NULL pointer dereference
- Record status
- Analyzed
Affected
- Linux Kernel < 4.9.273
- Linux Kernel < 4.14.237
- Linux Kernel < 4.19.195
- Linux Kernel < 5.4.126
- Linux Kernel < 5.10.44
- Linux Kernel < 5.12.11
- Linux Kernel 5.13
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2021-47270.md and follow it. Check whether this project is affected by CVE-2021-47270. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/10770d2ac0094b053c8897d96d7b2737cd72f7c5
- https://git.kernel.org/stable/c/4b289a0f3033f465b4fd51ba995251a7867a2aa2
- https://git.kernel.org/stable/c/8cd5f45c1b769e3e9e0f4325dd08b6c3749dc7ee
- https://git.kernel.org/stable/c/90c4d05780d47e14a50e11a7f17373104cd47d25
- https://git.kernel.org/stable/c/b4903f7fdc484628d0b8022daf86e2439d3ab4db
- https://git.kernel.org/stable/c/beb1e67a5ca8d69703c776db9000527f44c0c93c
- https://git.kernel.org/stable/c/f17aae7c4009160f0630a91842a281773976a5bc
- https://git.kernel.org/stable/c/10770d2ac0094b053c8897d96d7b2737cd72f7c5
- https://git.kernel.org/stable/c/4b289a0f3033f465b4fd51ba995251a7867a2aa2
- https://git.kernel.org/stable/c/8cd5f45c1b769e3e9e0f4325dd08b6c3749dc7ee
References
- https://git.kernel.org/stable/c/10770d2ac0094b053c8897d96d7b2737cd72f7c5
- https://git.kernel.org/stable/c/4b289a0f3033f465b4fd51ba995251a7867a2aa2
- https://git.kernel.org/stable/c/8cd5f45c1b769e3e9e0f4325dd08b6c3749dc7ee
- https://git.kernel.org/stable/c/90c4d05780d47e14a50e11a7f17373104cd47d25
- https://git.kernel.org/stable/c/b4903f7fdc484628d0b8022daf86e2439d3ab4db
- https://git.kernel.org/stable/c/beb1e67a5ca8d69703c776db9000527f44c0c93c
- https://git.kernel.org/stable/c/f17aae7c4009160f0630a91842a281773976a5bc
- https://git.kernel.org/stable/c/10770d2ac0094b053c8897d96d7b2737cd72f7c5
- https://git.kernel.org/stable/c/4b289a0f3033f465b4fd51ba995251a7867a2aa2
- https://git.kernel.org/stable/c/8cd5f45c1b769e3e9e0f4325dd08b6c3749dc7ee
- https://git.kernel.org/stable/c/90c4d05780d47e14a50e11a7f17373104cd47d25
- https://git.kernel.org/stable/c/b4903f7fdc484628d0b8022daf86e2439d3ab4db
- https://git.kernel.org/stable/c/beb1e67a5ca8d69703c776db9000527f44c0c93c
- https://git.kernel.org/stable/c/f17aae7c4009160f0630a91842a281773976a5bc