CVE-2017-7377
Published: 10 April 2017
The (1) v9fs_create and (2) v9fs_lcreate functions in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allow local guest OS privileged users to cause a denial of service (file descriptor or memory consumption) via vectors related to an already in-use fid.
Notes
| Author | Note |
|---|---|
| tyhicks | A privileged user in the guest can leak host memory Affected code is in hw/9pfs/virtio-9p.c in older releases |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
qemu Launchpad, Ubuntu, Debian |
artful |
Released
(1:2.8+dfsg-3ubuntu3)
|
| bionic |
Released
(1:2.8+dfsg-3ubuntu3)
|
|
| cosmic |
Released
(1:2.8+dfsg-3ubuntu3)
|
|
| disco |
Released
(1:2.8+dfsg-3ubuntu3)
|
|
| eoan |
Released
(1:2.8+dfsg-3ubuntu3)
|
|
| focal |
Released
(1:2.8+dfsg-3ubuntu3)
|
|
| groovy |
Released
(1:2.8+dfsg-3ubuntu3)
|
|
| hirsute |
Released
(1:2.8+dfsg-3ubuntu3)
|
|
| precise |
Does not exist
|
|
| trusty |
Released
(2.0.0+dfsg-2ubuntu1.34)
|
|
| upstream |
Needed
|
|
| xenial |
Released
(1:2.5+dfsg-5ubuntu10.14)
|
|
| yakkety |
Released
(1:2.6.1+dfsg-0ubuntu5.5)
|
|
| zesty |
Released
(1:2.8+dfsg-3ubuntu2.2)
|
|
|
Patches: upstream: http://git.qemu-project.org/?p=qemu.git;a=commit;h=d63fb193e71644a073b77ff5ac6f1216f2f6cf6e |
||
|
qemu-kvm Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| precise |
Ignored
(end of life)
|
|
| trusty |
Does not exist
|
|
| upstream |
Needed
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.0 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | High |
| User interaction | None |
| Scope | Changed |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H |