CVE-2015-5166

Publication date 12 August 2015

Last updated 24 July 2024

Ubuntu priority

Use-after-free vulnerability in QEMU in Xen 4.5.x and earlier does not completely unplug emulated block devices, which allows local HVM guest users to gain privileges by unplugging a block device twice.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
qemu	15.04 vivid	Fixed 1:2.2+dfsg-5expubuntu9.4
	14.10 utopic	Ignored
	14.04 LTS trusty	Not affected
	12.04 LTS precise	Not in release
qemu-kvm	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected
xen	15.04 vivid	Not affected
	14.10 utopic	Ignored
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected

Notes

mdeslaur

precise and trusty don't look affected

Patch details

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

Package	Patch details
qemu	Upstream: http://git.qemu.org/?p=qemu.git;a=commit;h=6cd387833d05e8ad31829d97e474dc420625aed9

References

Related Ubuntu Security Notices (USN)