CVE-2017-10916
high
CVSS v3
7.5
CVSS v4 NEW
—
VIR risk
7.5
Description
The vCPU context-switch implementation in Xen through 4.8.x improperly interacts with the Memory Protection Extensions (MPX) and Protection Key (PKU) features, which makes it easier for guest OS users to defeat ASLR and other protection mechanisms, aka XSA-220.
Predictions
Exploit likelihood
83%
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
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.8.1-1+deb9u3 |
| debian | bullseye | fixed | 4.8.1-1+deb9u3 |
| debian | forky | fixed | 4.8.1-1+deb9u3 |
| debian | sid | fixed | 4.8.1-1+deb9u3 |
| debian | trixie | fixed | 4.8.1-1+deb9u3 |
References
- http://www.debian.org/security/2017/dsa-3969
- http://www.securityfocus.com/bid/99167
- http://www.securitytracker.com/id/1038730
- https://security.gentoo.org/glsa/201708-03
- https://xenbits.xen.org/xsa/advisory-220.html
- https://www.suse.com/security/cve/CVE-2017-10916.html
- https://security-tracker.debian.org/tracker/CVE-2017-10916
CWEs
CWE-200
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.