Fedora 40 update for xen



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2024-31145
CVE-2024-31146
CWE-ID CWE-388
CWE-399
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

xen
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper error handling

EUVDB-ID: #VU96006

Risk: Medium

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

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 repository.

Vulnerable software versions

Fedora: 40

xen: before 4.18.2-5.fc40

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2024-91ddad6c8b


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) Resource management error

EUVDB-ID: #VU96007

Risk: Medium

CVSSv4.0: 6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

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 repository.

Vulnerable software versions

Fedora: 40

xen: before 4.18.2-5.fc40

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2024-91ddad6c8b


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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