CVE-2015-8340

Description

The memory_exchange function in common/memory.c in Xen 3.2.x through 4.6.x does not properly release locks, which might allow guest OS administrators to cause a denial of service (deadlock or host crash) via unspecified vectors, related to XENMEM_exchange error handling.

Category

4.7
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.11%
Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.debian.org/security/2016/dsa-3519 vendor advisory
http://xenbits.xen.org/xsa/advisory-159.html vendor advisory
http://www.securitytracker.com/id/1034391 vdb entry
http://support.citrix.com/article/CTX203451 patch
https://security.gentoo.org/glsa/201604-03 vendor advisory
http://www.securityfocus.com/bid/79038 vdb entry

Frequently Asked Questions

What is the severity of CVE-2015-8340?
CVE-2015-8340 has been scored as a medium severity vulnerability.
How to fix CVE-2015-8340?
To fix CVE-2015-8340, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-8340 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-8340 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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