Ubuntu.comUB:CVE-2017-7377CVE-2017-7377
6 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
25.6%
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 |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 17.10 | noarch | qemu | < 1:2.8+dfsg-3ubuntu3 | UNKNOWN |
| ubuntu | 18.04 | noarch | qemu | < 1:2.8+dfsg-3ubuntu3 | UNKNOWN |
| ubuntu | 18.10 | noarch | qemu | < 1:2.8+dfsg-3ubuntu3 | UNKNOWN |
| ubuntu | 19.04 | noarch | qemu | < 1:2.8+dfsg-3ubuntu3 | UNKNOWN |
| ubuntu | 19.10 | noarch | qemu | < 1:2.8+dfsg-3ubuntu3 | UNKNOWN |
| ubuntu | 20.04 | noarch | qemu | < 1:2.8+dfsg-3ubuntu3 | UNKNOWN |
| ubuntu | 20.10 | noarch | qemu | < 1:2.8+dfsg-3ubuntu3 | UNKNOWN |
| ubuntu | 21.04 | noarch | qemu | < 1:2.8+dfsg-3ubuntu3 | UNKNOWN |
| ubuntu | 14.04 | noarch | qemu | < 2.0.0+dfsg-2ubuntu1.34 | UNKNOWN |
| ubuntu | 16.04 | noarch | qemu | < 1:2.5+dfsg-5ubuntu10.14 | UNKNOWN |
References
www.openwall.com/lists/oss-security/2017/04/03/2
launchpad.net/bugs/cve/CVE-2017-7377
lists.gnu.org/archive/html/qemu-devel/2017-03/msg05449.html
nvd.nist.gov/vuln/detail/CVE-2017-7377
security-tracker.debian.org/tracker/CVE-2017-7377
ubuntu.com/security/notices/USN-3289-1
www.cve.org/CVERecord?id=CVE-2017-7377
Related
6 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
25.6%