CVE-2015-6654

Publication date 3 September 2015

Last updated 24 July 2024

The xenmem_add_to_physmap_one function in arch/arm/mm.c in Xen 4.5.x, 4.4.x, and earlier does not limit the number of printk console messages when reporting a failure to retrieve a reference on a foreign page, which allows remote domains to cause a denial of service by leveraging permissions to map the memory of a foreign guest.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
xen	15.10 wily	Not affected
	15.04 vivid	Fixed 4.5.0-1ubuntu4.2
	14.04 LTS trusty	Fixed 4.4.2-0ubuntu0.14.04.2
	12.04 LTS precise	Fixed 4.1.6.1-0ubuntu0.12.04.6

Notes

mdeslaur

hypervisor packages are in universe. For issues in the hypervisor, add appropriate tags to each section, ex: Tags_xen: universe-binary

seth-arnold

Mitigation: "Reducing the hypervisor log level can be used to suppress messages"

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
xen	Upstream: http://xenbits.xen.org/xsa/xsa141.patch