CVE-2021-47049 - Vulnerability Details - OpenCVE

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Use after free in __vmbus_open() The "open_info" variable is added to the &vmbus_connection.chn_msg_list, but the error handling frees "open_info" without removing it from the list. This will result in a use after free. First remove it from the list, and then free it.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

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
Linux	Linux Kernel

Configuration 1 [-]

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

No data.

References

Link	Providers
https://git.kernel.org/stable/c/2728f289b3270b0e273292b46c534421a33bbfd5
https://git.kernel.org/stable/c/3e9bf43f7f7a46f21ec071cb47be92d0874c48da
https://git.kernel.org/stable/c/d5c7b42c9f56ca46b286daa537d181bd7f69214f
https://git.kernel.org/stable/c/f37dd5d1b5d38a79a4f7b8dd7bbb705505f05560
https://lore.kernel.org/linux-cve-announce/2024022840-CVE-2021-47049-5cc6@gregkh/T/#u
https://nvd.nist.gov/vuln/detail/CVE-2021-47049
https://www.cve.org/CVERecord?id=CVE-2021-47049

History

Mon, 09 Dec 2024 19:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
Metrics	cvssV3_1 `{'score': 6.0, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H'}`	cvssV3_1 `{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}`

Mon, 04 Nov 2024 13:15:00 +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: 2024-02-28T08:13:52.168Z

Updated: 2025-05-04T12:40:57.653Z

Reserved: 2024-02-27T18:42:55.971Z

Link: CVE-2021-47049

Vulnrichment

Updated: 2024-08-04T05:24:39.572Z

NVD

Status : Analyzed

Published: 2024-02-28T09:15:40.417

Modified: 2024-12-09T19:06:07.417

Link: CVE-2021-47049

Redhat

Severity : Low

Publid Date: 2024-02-28T00:00:00Z

Links: CVE-2021-47049 - Bugzilla

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