#VU102132 NULL pointer dereference in Linux kernel - CVE-2024-53219

Vulnerability identifier: #VU102132

Vulnerability 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-2024-53219

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

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 virtio_fs_get_tree() function in fs/fuse/virtio_fs.c, within the fuse_read_args_fill(), fuse_release_user_pages(), fuse_aio_complete_req(), fuse_get_frag_size(), fuse_get_user_pages() and fuse_direct_io() functions in fs/fuse/file.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/2bc07714dc955a91d2923a440ea02c3cb3376b10
https://git.kernel.org/stable/c/41748675c0bf252b3c5f600a95830f0936d366c1
https://git.kernel.org/stable/c/9a8fde56d4b6d51930936ed50f6370a9097328d1

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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.