CVE-2016-7154
medium
CVSS v3
6.7
CVSS v2
7.2
VIR risk
6.7
Description
Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service (host crash) and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number.
Predictions
Exploit likelihood
66%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-7154
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2016-7154.html
Vendor advisory: cve@mitre.org — http://xenbits.xen.org/xsa/xsa188.patch
Vendor advisory: cve@mitre.org — http://xenbits.xen.org/xsa/advisory-188.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.6.0-1 |
| debian | bullseye | fixed | 4.6.0-1 |
| debian | forky | fixed | 4.6.0-1 |
| debian | sid | fixed | 4.6.0-1 |
| debian | trixie | fixed | 4.6.0-1 |
References
- http://support.citrix.com/article/CTX216071
- http://www.c7zero.info/stuff/csw2017_ExploringYourSystemDeeper_updated.pdf
- http://www.debian.org/security/2016/dsa-3663
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.securityfocus.com/bid/92863
- http://www.securitytracker.com/id/1036754
- http://xenbits.xen.org/xsa/advisory-188.html
- http://xenbits.xen.org/xsa/xsa188.patch
- https://www.suse.com/security/cve/CVE-2016-7154.html
- https://security-tracker.debian.org/tracker/CVE-2016-7154
CWEs
CWE-416
Verify integrity in audit chain (admin only). AS-IS.