CVE-2017-11334
Published: 2 August 2017
The address_space_write_continue function in exec.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds access and guest instance crash) by leveraging use of qemu_map_ram_ptr to access guest ram block area.
Notes
Author | Note |
---|---|
mdeslaur | second commit doesn't look right, lock variable used in dma field, needs more investigation This issue caused a regression for Xen users, and was reverted in USN 3575-2. Since this is a low-severity issue, we are not going to include it in a subsequent update. |
Priority
Status
Package | Release | Status |
---|---|---|
qemu-kvm Launchpad, Ubuntu, Debian |
yakkety |
Does not exist
|
zesty |
Does not exist
|
|
artful |
Does not exist
|
|
bionic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
qemu Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(1:2.10+dfsg-0ubuntu3.4)
|
bionic |
Not vulnerable
(1:2.11+dfsg-1ubuntu1)
|
|
trusty |
Ignored
|
|
upstream |
Needs triage
|
|
xenial |
Ignored
|
|
yakkety |
Ignored
(end of life)
|
|
zesty |
Ignored
(end of life)
|
|
Patches: upstream: https://git.qemu.org/gitweb.cgi?p=qemu.git;a=commit;h=04bf2526ce87f21b32c9acba1c5518708c243ad0 upstream: https://git.qemu.org/gitweb.cgi?p=qemu.git;a=commit;h=f5aa69bdc3418773f26747ca282c291519626ece |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 4.4 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | High |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |