Denial of service in Xen



Published: 2018-08-01
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-14678
CWE-ID CWE-388
Exploitation vector Local network
Public exploit N/A
Vulnerable software
Subscribe 		Xen
Server applications / Virtualization software

Vendor Xen Project

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Denial of service

EUVDB-ID: #VU14156

Risk: Low

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

CVE-ID: CVE-2018-14678

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

Description

The vulnerability allows an adjacent attacker to cause DoS condition on the target system.

The vulnerability exists due to an uninitialized %ebx state error in a failsafe callback path on x86 PV systems. An adjacent attacker can cause the service to crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Xen: 4.0.0 - 4.10.0

External links

http://xenbits.xen.org/xsa/advisory-274.html


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.



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