In the Linux kernel, the following vulnerability has been resolved: scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del() The kref_put() function will call nport->release if the refcount drops to zero. The nport->release release function is _efc_nport_free() which frees "nport". But then we dereference "nport" on the next line which is a use after free. Re-order these lines to avoid the use after free.

Metrics

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

Affected Vendors & Products

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:*:*:*:*:*:*:*:*
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/16a570f07d870a285b0c0b0d1ca4dff79e8aa5ff cve-icon cve-icon
https://git.kernel.org/stable/c/2e4b02fad094976763af08fec2c620f4f8edd9ae cve-icon cve-icon
https://git.kernel.org/stable/c/7c2908985e4ae0ea1b526b3916de9e5351650908 cve-icon cve-icon
https://git.kernel.org/stable/c/98752fcd076a8cbc978016eae7125b4971be1eec cve-icon cve-icon
https://git.kernel.org/stable/c/abc71e89170ed32ecf0a5a29f31aa711e143e941 cve-icon cve-icon
https://git.kernel.org/stable/c/baeb8628ab7f4577740f00e439d3fdf7c876b0ff cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2024102152-CVE-2024-49852-875e@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2024-49852 cve-icon
https://www.cve.org/CVERecord?id=CVE-2024-49852 cve-icon
History

Wed, 23 Oct 2024 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Weaknesses CWE-416
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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'}

Tue, 22 Oct 2024 01:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Mon, 21 Oct 2024 13:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 21 Oct 2024 12:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del() The kref_put() function will call nport->release if the refcount drops to zero. The nport->release release function is _efc_nport_free() which frees "nport". But then we dereference "nport" on the next line which is a use after free. Re-order these lines to avoid the use after free.
Title scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-10-21T12:18:45.418Z

Updated: 2024-11-05T09:50:07.316Z

Reserved: 2024-10-21T12:17:06.016Z

Link: CVE-2024-49852

cve-icon Vulnrichment

Updated: 2024-10-21T12:56:50.384Z

cve-icon NVD

Status : Analyzed

Published: 2024-10-21T13:15:05.977

Modified: 2024-10-23T16:14:01.857

Link: CVE-2024-49852

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-10-21T00:00:00Z

Links: CVE-2024-49852 - Bugzilla