CVE-2021-47616 - Vulnerability Details - OpenCVE

In the Linux kernel, the following vulnerability has been resolved:

RDMA: Fix use-after-free in rxe_queue_cleanup

On error handling path in rxe_qp_from_init() qp->sq.queue is freed and
then rxe_create_qp() will drop last reference to this object. qp clean up
function will try to free this queue one time and it causes UAF bug.

Fix it by zeroing queue pointer after freeing queue in rxe_qp_from_init().

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 0.00032.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Linux	Linux Kernel

Configuration 1 [-]

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

No data.

No data.

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/84b01721e8042cdd1e8ffeb648844a09cd4213e0
https://git.kernel.org/stable/c/acb53e47db1fbc7cd37ab10b46388f045a76e383
https://lore.kernel.org/linux-cve-announce/2024061909-CVE-2021-47616-5ee0@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2021-47616
https://www.cve.org/CVERecord?id=CVE-2021-47616

History

Wed, 11 Sep 2024 13:30:00 +0000

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

Tue, 27 Aug 2024 16:30:00 +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': 5.6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/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'}`

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-06-19T14:58:03.817Z

Updated: 2025-05-04T07:14:56.348Z

Reserved: 2024-06-19T14:55:32.795Z

Link: CVE-2021-47616

Vulnrichment

Updated: 2024-08-04T05:47:40.519Z

NVD

Status : Modified

Published: 2024-06-19T15:15:56.130

Modified: 2024-11-21T06:36:40.680

Link: CVE-2021-47616

Redhat

Severity : Low

Publid Date: 2024-06-19T00:00:00Z

Links: CVE-2021-47616 - Bugzilla

OpenCVE Enrichment

No data.

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