CVE-2015-8818

Publication date 29 December 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The cpu_physical_memory_write_rom_internal function in exec.c in QEMU (aka Quick Emulator) does not properly skip MMIO regions, which allows local privileged guest users to cause a denial of service (guest crash) via unspecified vectors.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
qemu	17.04 zesty	Not affected
	16.10 yakkety	Not affected
	16.04 LTS xenial	Not affected
	15.10 wily	Ignored end of life
	14.04 LTS trusty	Ignored
	12.04 LTS precise	Not in release
qemu-kvm	17.04 zesty	Not in release
	16.10 yakkety	Not in release
	16.04 LTS xenial	Not in release
	15.10 wily	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected

Notes

mdeslaur

1.6.0 to 2.3.1 same patches as CVE-2015-8817, see oss-security list of commits may be incomplete, see https://lists.gnu.org/archive/html/qemu-stable/2016-01/msg00065.html we will not be releasing an update for this this issue.

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=c3c1bb99d1c11978d9ce94d1bd Upstream: http://git.qemu.org/?p=qemu.git;a=commit;h=e4a511f8cc6f4a46d409fb5c9f Upstream: http://git.qemu.org/?p=qemu.git;a=commit;h=965eb2fcdfe919ecced6c34803 Upstream: http://git.qemu.org/?p=qemu.git;a=commit;h=b242e0e0e2969c044a318e56f7

Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H