CVE-2017-8903
high
CVSS v3
8.8
CVSS v4 NEW
—
VIR risk
8.8
Description
Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.
Predictions
Exploit likelihood
82%
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 | 4.8.1-1+deb9u1 |
| sid | Fixed | 4.8.1-1+deb9u1 |
| forky | Fixed | 4.8.1-1+deb9u1 |
| bullseye | Fixed | 4.8.1-1+deb9u1 |
| bookworm | Fixed | 4.8.1-1+deb9u1 |
References
- http://www.securityfocus.com/bid/98426
- http://www.securitytracker.com/id/1038386
- https://blog.xenproject.org/2017/05/02/updates-on-xsa-213-xsa-214-and-xsa-215/
- https://security.gentoo.org/glsa/201705-11
- https://xenbits.xen.org/xsa/advisory-213.html
- https://www.suse.com/security/cve/CVE-2017-8903.html
- https://security-tracker.debian.org/tracker/CVE-2017-8903
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.