#VU32183 Input validation error in Xen - CVE-2016-10024

Vulnerability identifier: #VU32183

Vulnerability risk: Low

CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H/E:U/U:Clear]

CVE-ID: CVE-2016-10024

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Xen
Server applications / Virtualization software

Vendor: Xen Project

Description

The vulnerability allows a local privileged user to a crash the entire system.

Xen through 4.8.x allows local x86 PV guest OS kernel administrators to cause a denial of service (host hang or crash) by modifying the instruction stream asynchronously while performing certain kernel operations.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Xen: 4.24

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External links
https://www.debian.org/security/2017/dsa-3847
https://www.securityfocus.com/bid/95021
https://www.securitytracker.com/id/1037517
https://xenbits.xen.org/xsa/advisory-202.html
https://security.gentoo.org/glsa/201612-56
https://support.citrix.com/article/CTX219378

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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.