7.8
HIGH
CVE-2024-49852
Oracle Linux Use-After-Free in scsi elx libefc
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.

INFO

Published Date :

Oct. 21, 2024, 1:15 p.m.

Last Modified :

Oct. 23, 2024, 4:14 p.m.

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2024-49852 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-49852 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-49852 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Oct. 23, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://git.kernel.org/stable/c/16a570f07d870a285b0c0b0d1ca4dff79e8aa5ff No Types Assigned https://git.kernel.org/stable/c/16a570f07d870a285b0c0b0d1ca4dff79e8aa5ff Patch
    Changed Reference Type https://git.kernel.org/stable/c/2e4b02fad094976763af08fec2c620f4f8edd9ae No Types Assigned https://git.kernel.org/stable/c/2e4b02fad094976763af08fec2c620f4f8edd9ae Patch
    Changed Reference Type https://git.kernel.org/stable/c/7c2908985e4ae0ea1b526b3916de9e5351650908 No Types Assigned https://git.kernel.org/stable/c/7c2908985e4ae0ea1b526b3916de9e5351650908 Patch
    Changed Reference Type https://git.kernel.org/stable/c/98752fcd076a8cbc978016eae7125b4971be1eec No Types Assigned https://git.kernel.org/stable/c/98752fcd076a8cbc978016eae7125b4971be1eec Patch
    Changed Reference Type https://git.kernel.org/stable/c/abc71e89170ed32ecf0a5a29f31aa711e143e941 No Types Assigned https://git.kernel.org/stable/c/abc71e89170ed32ecf0a5a29f31aa711e143e941 Patch
    Changed Reference Type https://git.kernel.org/stable/c/baeb8628ab7f4577740f00e439d3fdf7c876b0ff No Types Assigned https://git.kernel.org/stable/c/baeb8628ab7f4577740f00e439d3fdf7c876b0ff Patch
    Added CWE NIST CWE-416
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.14 up to (excluding) 5.15.168 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.113 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.54 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.10.13 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.11 up to (excluding) 6.11.2
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Oct. 21, 2024

    Action Type Old Value New Value
    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.
    Added Reference kernel.org https://git.kernel.org/stable/c/16a570f07d870a285b0c0b0d1ca4dff79e8aa5ff [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/abc71e89170ed32ecf0a5a29f31aa711e143e941 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/baeb8628ab7f4577740f00e439d3fdf7c876b0ff [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/7c2908985e4ae0ea1b526b3916de9e5351650908 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/98752fcd076a8cbc978016eae7125b4971be1eec [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/2e4b02fad094976763af08fec2c620f4f8edd9ae [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-49852 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-49852 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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