Remote denial of service in Xen

1) NULL pointer dereference

EUVDB-ID: #VU101818

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-53240

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote backend to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the guest xen-netfront driver. A a malicious network backend can crash the guest OS.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Xen: All versions

CPE2.3

• cpe:2.3:a:xen_project:xen:*:*:*:*:*:*:*:*

External links

http://xenbits.xen.org/xsa/advisory-465.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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