#VU7146 Information disclosure in Xen - CVE-2017-10911

Vulnerability identifier: #VU7146

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-10911

CWE-ID: CWE-200

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Xen
Server applications / Virtualization software

Vendor: Xen Project

Description
The vulnerability allows a local attacker to obtain potentially sensitive information from another guest system or the host system.

The weakness exists due to improper initialization of some fields of the block interface (blkif) response structure. A local attacker can read arbitrary files from stack memory.

Successful exploitation of the vulnerability results in information disclosure.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Xen: 4.4.0 - 4.8.1

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External links
https://xenbits.xen.org/xsa/advisory-216.html

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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