CVE-2016-7154
medium
CVSS v3
6.7
CVSS v4 NEW
—
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
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 4.6.0-1 |
| sid | Fixed | 4.6.0-1 |
| forky | Fixed | 4.6.0-1 |
| bullseye | Fixed | 4.6.0-1 |
| bookworm | 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
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.