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.

The EPSS score is 0.00016.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
6f3d791f300618caf82a2be0c27456edd76d5164 affected < d5c7b42c9f56ca46b286daa537d181bd7f69214f
6f3d791f300618caf82a2be0c27456edd76d5164 affected < f37dd5d1b5d38a79a4f7b8dd7bbb705505f05560
6f3d791f300618caf82a2be0c27456edd76d5164 affected < 2728f289b3270b0e273292b46c534421a33bbfd5
6f3d791f300618caf82a2be0c27456edd76d5164 affected < 3e9bf43f7f7a46f21ec071cb47be92d0874c48da
6b32d45bd59982751beb8220e442b40b2706647f affected —
Linux Linux affected
Version Status Constraints
4.14 affected —
0 unaffected < 4.14
5.10.37 unaffected ≤ 5.10.*
5.11.21 unaffected ≤ 5.11.*
5.12.4 unaffected ≤ 5.12.*
5.13 unaffected ≤ *

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.

No data.

Project Subscriptions

Vendors Products
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Linux Kernel Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/2728f289b3270b0e273292b46c534421a33bbfd5 cve-icon cve-icon
https://git.kernel.org/stable/c/3e9bf43f7f7a46f21ec071cb47be92d0874c48da cve-icon cve-icon
https://git.kernel.org/stable/c/d5c7b42c9f56ca46b286daa537d181bd7f69214f cve-icon cve-icon
https://git.kernel.org/stable/c/f37dd5d1b5d38a79a4f7b8dd7bbb705505f05560 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2024022840-CVE-2021-47049-5cc6@gregkh/T/#u cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2021-47049 cve-icon
https://www.cve.org/CVERecord?id=CVE-2021-47049 cve-icon
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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

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

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

Link: CVE-2021-47049

cve-icon Vulnrichment

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

cve-icon NVD

Status : Analyzed

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

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

Link: CVE-2021-47049

cve-icon Redhat

Severity : Low

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

Links: CVE-2021-47049 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses