CVE-2021-47270
Cisco Linux Kernel USB Null Pointer Dereference Vulnerability
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.
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
Dec. 24, 2024, 4:32 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47270.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47270 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47270 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Dec. 24, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.6 up to (excluding) 4.9.273 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.237 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.195 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.126 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.44 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.11 *cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc5:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/10770d2ac0094b053c8897d96d7b2737cd72f7c5 No Types Assigned https://git.kernel.org/stable/c/10770d2ac0094b053c8897d96d7b2737cd72f7c5 Patch Changed Reference Type https://git.kernel.org/stable/c/10770d2ac0094b053c8897d96d7b2737cd72f7c5 No Types Assigned https://git.kernel.org/stable/c/10770d2ac0094b053c8897d96d7b2737cd72f7c5 Patch Changed Reference Type https://git.kernel.org/stable/c/4b289a0f3033f465b4fd51ba995251a7867a2aa2 No Types Assigned https://git.kernel.org/stable/c/4b289a0f3033f465b4fd51ba995251a7867a2aa2 Patch Changed Reference Type https://git.kernel.org/stable/c/4b289a0f3033f465b4fd51ba995251a7867a2aa2 No Types Assigned https://git.kernel.org/stable/c/4b289a0f3033f465b4fd51ba995251a7867a2aa2 Patch Changed Reference Type https://git.kernel.org/stable/c/8cd5f45c1b769e3e9e0f4325dd08b6c3749dc7ee No Types Assigned https://git.kernel.org/stable/c/8cd5f45c1b769e3e9e0f4325dd08b6c3749dc7ee Patch Changed Reference Type https://git.kernel.org/stable/c/8cd5f45c1b769e3e9e0f4325dd08b6c3749dc7ee No Types Assigned https://git.kernel.org/stable/c/8cd5f45c1b769e3e9e0f4325dd08b6c3749dc7ee Patch Changed Reference Type https://git.kernel.org/stable/c/90c4d05780d47e14a50e11a7f17373104cd47d25 No Types Assigned https://git.kernel.org/stable/c/90c4d05780d47e14a50e11a7f17373104cd47d25 Patch Changed Reference Type https://git.kernel.org/stable/c/90c4d05780d47e14a50e11a7f17373104cd47d25 No Types Assigned https://git.kernel.org/stable/c/90c4d05780d47e14a50e11a7f17373104cd47d25 Patch Changed Reference Type https://git.kernel.org/stable/c/b4903f7fdc484628d0b8022daf86e2439d3ab4db No Types Assigned https://git.kernel.org/stable/c/b4903f7fdc484628d0b8022daf86e2439d3ab4db Patch Changed Reference Type https://git.kernel.org/stable/c/b4903f7fdc484628d0b8022daf86e2439d3ab4db No Types Assigned https://git.kernel.org/stable/c/b4903f7fdc484628d0b8022daf86e2439d3ab4db Patch Changed Reference Type https://git.kernel.org/stable/c/beb1e67a5ca8d69703c776db9000527f44c0c93c No Types Assigned https://git.kernel.org/stable/c/beb1e67a5ca8d69703c776db9000527f44c0c93c Patch Changed Reference Type https://git.kernel.org/stable/c/beb1e67a5ca8d69703c776db9000527f44c0c93c No Types Assigned https://git.kernel.org/stable/c/beb1e67a5ca8d69703c776db9000527f44c0c93c Patch Changed Reference Type https://git.kernel.org/stable/c/f17aae7c4009160f0630a91842a281773976a5bc No Types Assigned https://git.kernel.org/stable/c/f17aae7c4009160f0630a91842a281773976a5bc Patch Changed Reference Type https://git.kernel.org/stable/c/f17aae7c4009160f0630a91842a281773976a5bc No Types Assigned https://git.kernel.org/stable/c/f17aae7c4009160f0630a91842a281773976a5bc Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/10770d2ac0094b053c8897d96d7b2737cd72f7c5 Added Reference https://git.kernel.org/stable/c/4b289a0f3033f465b4fd51ba995251a7867a2aa2 Added Reference https://git.kernel.org/stable/c/8cd5f45c1b769e3e9e0f4325dd08b6c3749dc7ee Added Reference https://git.kernel.org/stable/c/90c4d05780d47e14a50e11a7f17373104cd47d25 Added Reference https://git.kernel.org/stable/c/b4903f7fdc484628d0b8022daf86e2439d3ab4db Added Reference https://git.kernel.org/stable/c/beb1e67a5ca8d69703c776db9000527f44c0c93c Added Reference https://git.kernel.org/stable/c/f17aae7c4009160f0630a91842a281773976a5bc -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 21, 2024
Action Type Old Value New Value Added 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. Added Reference kernel.org https://git.kernel.org/stable/c/beb1e67a5ca8d69703c776db9000527f44c0c93c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8cd5f45c1b769e3e9e0f4325dd08b6c3749dc7ee [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/10770d2ac0094b053c8897d96d7b2737cd72f7c5 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/b4903f7fdc484628d0b8022daf86e2439d3ab4db [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/4b289a0f3033f465b4fd51ba995251a7867a2aa2 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f17aae7c4009160f0630a91842a281773976a5bc [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/90c4d05780d47e14a50e11a7f17373104cd47d25 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47270 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47270
weaknesses.