NULL pointer dereference in Linux kernel tls



| Updated: 2025-05-13
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-36489
CWE-ID CWE-476
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) NULL pointer dereference

EUVDB-ID: #VU93030

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-36489

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the tls_ctx_create() function in net/tls/tls_main.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.10 - 6.6.32

CPE2.3 External links

https://git.kernel.org/stable/c/d72e126e9a36d3d33889829df8fc90100bb0e071
https://git.kernel.org/stable/c/2c260a24cf1c4d30ea3646124f766ee46169280b
https://git.kernel.org/stable/c/335c8f1566d8e44c384d16b450a18554896d4e8b
https://git.kernel.org/stable/c/ab67c2fd3d070a21914d0c31319d3858ab4e199c
https://git.kernel.org/stable/c/ef21007a7b581c7fe64d5a10c320880a033c837b
https://git.kernel.org/stable/c/91e61dd7a0af660408e87372d8330ceb218be302
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.219
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.161
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.93
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.33


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



###SIDEBAR###