CVE-2021-47236 - Vulnerability Details - OpenCVE

In the Linux kernel, the following vulnerability has been resolved: net: cdc_eem: fix tx fixup skb leak when usbnet transmit a skb, eem fixup it in eem_tx_fixup(), if skb_copy_expand() failed, it return NULL, usbnet_start_xmit() will have no chance to free original skb. fix it by free orginal skb in eem_tx_fixup() first, then check skb clone status, if failed, return NULL to usbnet.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Redhat	Enterprise Linux

No data.

Package	CPE	Advisory	Released Date
Red Hat Enterprise Linux 8
kernel-rt-0:4.18.0-553.8.1.rt7.349.el8_10	cpe:/a:redhat:enterprise_linux:8::nfv	RHSA-2024:4352	2024-07-08T00:00:00Z
kernel-0:4.18.0-553.8.1.el8_10	cpe:/o:redhat:enterprise_linux:8	RHSA-2024:4211	2024-07-02T00:00:00Z

References

Link	Providers
https://git.kernel.org/stable/c/05b2b9f7d24b5663d9b47427fe1555bdafd3ea02
https://git.kernel.org/stable/c/14184ec5c958b589ba934da7363a2877879204df
https://git.kernel.org/stable/c/1bcacd6088d61c0ac6a990d87975600a81f3247e
https://git.kernel.org/stable/c/81de2ed06df8b5451e050fe6a318af3263dbff3f
https://git.kernel.org/stable/c/b4f7a9fc9d094c0c4a66f2ad7c37b1dbe9e78f88
https://git.kernel.org/stable/c/c3b26fdf1b32f91c7a3bc743384b4a298ab53ad7
https://git.kernel.org/stable/c/f12554b0ff639e74612cc01b3b4a049e098d2d65
https://git.kernel.org/stable/c/f4e6a7f19c82f39b1803e91c54718f0d7143767d
https://nvd.nist.gov/vuln/detail/CVE-2021-47236
https://www.cve.org/CVERecord?id=CVE-2021-47236

History

Mon, 04 Nov 2024 12:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-21T14:19:37.724Z

Updated: 2024-12-19T07:37:57.771Z

Reserved: 2024-04-10T18:59:19.531Z

Link: CVE-2021-47236

Vulnrichment

Updated: 2024-08-04T05:32:07.941Z

NVD

Status : Awaiting Analysis

Published: 2024-05-21T15:15:12.857

Modified: 2024-11-21T06:35:41.480

Link: CVE-2021-47236

Redhat

Severity : Low

Publid Date: 2024-05-21T00:00:00Z

Links: CVE-2021-47236 - Bugzilla

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