VDB-289490 · CVE-2024-56564 · Nessus 233479

Linux Kernel up to 6.12.3 ceph_mds_auth_match memory leak

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5.5	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in Linux Kernel up to 6.12.3. This vulnerability affects the function ceph_mds_auth_match. Such manipulation leads to memory leak. This vulnerability is referenced as CVE-2024-56564. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.12.3 and classified as critical. Affected by this issue is the function ceph_mds_auth_match. The manipulation with an unknown input leads to a memory leak vulnerability. Using CWE to declare the problem leads to CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: ceph: pass cred pointer to ceph_mds_auth_match() This eliminates a redundant get_current_cred() call, because ceph_mds_check_access() has already obtained this pointer. As a side effect, this also fixes a reference leak in ceph_mds_auth_match(): by omitting the get_current_cred() call, no additional cred reference is taken.

The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2024-56564 since 12/27/2024. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 233479 (Ubuntu 24.10 : Linux kernel (Low Latency) vulnerabilities (USN-7380-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.12.4 eliminates this vulnerability. Applying the patch ffa6ba7bdb7f07f49c9e9150b0176df066520f62/23426309a4064b25a961e1c72961d8bfc7c8c990 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (233479) and CERT Bund (WID-SEC-2024-3762). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

Debian Linux
Amazon Linux 2
Red Hat Enterprise Linux
Ubuntu Linux
SUSE Linux
Oracle Linux
RESF Rocky Linux
Dell NetWorker
Dell Avamar
Red Hat OpenShift
IBM QRadar SIEM
Dell PowerProtect Data Domain
Open Source Linux Kernel
IBM DataPower Gateway
Dell Secure Connect Gateway

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 233479
Nessus Name: Ubuntu 24.10 : Linux kernel (Low Latency) vulnerabilities (USN-7380-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.12.4
Patch: ffa6ba7bdb7f07f49c9e9150b0176df066520f62/23426309a4064b25a961e1c72961d8bfc7c8c990

Timelineinfo

12/27/2024 🔍
12/27/2024 +0 days 🔍
12/27/2024 +0 days 🔍
12/23/2025 +361 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-56564 (🔍)
GCVE (CVE): GCVE-0-2024-56564
GCVE (VulDB): GCVE-100-289490
CERT Bund: WID-SEC-2024-3762 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 12/27/2024 15:49
Updated: 12/23/2025 02:33
Changes: 12/27/2024 15:49 (58), 03/29/2025 19:09 (2), 07/24/2025 23:15 (7), 10/07/2025 20:59 (11), 12/23/2025 02:33 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.