Input validation error in xen (Alpine package)



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2014-9065
CWE-ID CWE-20
Exploitation vector Local
Public exploit N/A
Vulnerable software
 xen (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Input validation error

EUVDB-ID: #VU33833

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2014-9065

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local #AU# to perform a denial of service (DoS) attack.

common/spinlock.c in Xen 4.4.x and earlier does not properly handle read and write locks, which allows local x86 guest users to cause a denial of service (write denial or NMI watchdog timeout and host crash) via a large number of read requests, a different vulnerability to CVE-2014-9066.

Mitigation

Install update from vendor's website.

Vulnerable software versions

xen (Alpine package): 4.4.1-r6

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=621b3e6ae3cef5a89353cb0868372c2b94ffa454
https://git.alpinelinux.org/aports/commit/?id=6bd9fb3a36c5ab942fd0b11250264f2db9178843


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.



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