Multiple vulnerabilities in Xen



Published: 2024-08-14
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2024-31146
CVE-2024-31145
CWE-ID CWE-399
CWE-388
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Xen
Server applications / Virtualization software

Vendor Xen Project

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Resource management error

EUVDB-ID: #VU96007

Risk: Medium

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

CVE-ID: CVE-2024-31146

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a malicious guest to escalate privileges on the system.

The vulnerability exists due to improper management of shared resources when using PCI pass-through. A malicious guest can escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Xen: All versions

CPE2.3 External links

http://xenbits.xen.org/xsa/advisory-461.html


Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

2) Improper error handling

EUVDB-ID: #VU96006

Risk: Medium

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-31145

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

Description

The vulnerability allows a malicious guest to escalate privileges on the system.

The vulnerability exists due to improper error handling in x86 IOMMU identity mapping. A malicious guest can access memory regions related to other guests or the hypervisor.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Xen: All versions

CPE2.3 External links

http://xenbits.xen.org/xsa/advisory-460.html


Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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



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