Vulnerability identifier: #VU90151

Vulnerability risk: Medium

CVSSv3.1: 5 [AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-35863

CWE-ID: CWE-416

Exploitation vector: Local network

Exploit availability: No

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

Vendor: Linux Foundation

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the is_valid_oplock_break() function in fs/smb/client/misc.c. A remote non-authenticated attacker can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel:

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External links
http://git.kernel.org/stable/c/494c91e1e9413b407d12166a61b84200d4d54fac
http://git.kernel.org/stable/c/0a15ba88a32fa7a516aff7ffd27befed5334dff2
http://git.kernel.org/stable/c/16d58c6a7db5050b9638669084b63fc05f951825
http://git.kernel.org/stable/c/69ccf040acddf33a3a85ec0f6b45ef84b0f7ec29

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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