Vulnerability identifier: #VU90149

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-2024-35864

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 smb2_is_valid_lease_break() function in fs/smb/client/smb2misc.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/c868cabdf6fdd61bea54532271f4708254e57fc5
http://git.kernel.org/stable/c/f92739fdd4522c4291277136399353d7c341fae4
http://git.kernel.org/stable/c/a8344e2b69bde63f713b0aa796d70dbeadffddfb
http://git.kernel.org/stable/c/705c76fbf726c7a2f6ff9143d4013b18daaaebf1

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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.