CVE-2017-7228
Description
An issue (known as XSA-212) was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEM_exchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays.
Predictions
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 |
|---|---|---|---|
| debian | bookworm | fixed | 4.8.1-1 |
| debian | bullseye | fixed | 4.8.1-1 |
| debian | forky | fixed | 4.8.1-1 |
| debian | sid | fixed | 4.8.1-1 |
| debian | trixie | fixed | 4.8.1-1 |
References
- http://openwall.com/lists/oss-security/2017/04/04/3
- http://www.debian.org/security/2017/dsa-3847
- http://www.securityfocus.com/bid/97375
- http://www.securitytracker.com/id/1038223
- http://xenbits.xen.org/xsa/advisory-212.html
- https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-029-2017.txt
- https://googleprojectzero.blogspot.com/2017/04/pandavirtualization-exploiting-xen.html
- https://www.exploit-db.com/exploits/41870/
- https://security-tracker.debian.org/tracker/CVE-2017-7228
CWEs
CWE-129
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.