CVE-2024-41076

NFSv4: Fix memory leak in nfs4_set_security_label

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

NVD
RedHat

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

NFSv4: Fix memory leak in nfs4_set_security_label

We leak nfs_fattr and nfs4_label every time we set a security xattr.

A vulnerability was found in the nfs4_set_security_label() in the Linux kernel, where the function fails to free the nfs_fattr attribute before exiting, leaving said memory allocation present. As the nfs4_set_security_label() is called repeatedly over time, this may lead to memory exhaustion.

*Credits: N/A

CVSS Scores

Red Hatv3.1 5.5

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-07-12 CVE Reserved
2024-07-29 CVE Published
2024-08-23 EPSS Updated
2024-09-11 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-401: Missing Release of Memory after Effective Lifetime

CAPEC

References (6)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/899604a7c958771840941caff9ee3dd8193d984c	2024-07-25
https://git.kernel.org/stable/c/b98090699319e64f5de1e8db5bb75870f1eb1c6e	2024-07-25
https://git.kernel.org/stable/c/d130220ccc94d74d70da984a199477937e7bf03c	2024-07-25
https://git.kernel.org/stable/c/aad11473f8f4be3df86461081ce35ec5b145ba68	2024-05-22

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2024-41076	2024-09-03
https://bugzilla.redhat.com/show_bug.cgi?id=2300453	2024-09-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.1.101 Search vendor "Linux" for product "Linux Kernel" and version " < 6.1.101"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.6.42 Search vendor "Linux" for product "Linux Kernel" and version " < 6.6.42"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.9.11 Search vendor "Linux" for product "Linux Kernel" and version " < 6.9.11"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.10 Search vendor "Linux" for product "Linux Kernel" and version " < 6.10"		en		Affected