CVE-2017-14319
Description
A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table entries remain in sync with other accounting done. Although the identity of the page frame was validated correctly, neither the presence of the mapping nor page writability were taken into account.
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
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 4.8.2+xsa245-0+deb9u1 |
| sid | Fixed | 4.8.2+xsa245-0+deb9u1 |
| forky | Fixed | 4.8.2+xsa245-0+deb9u1 |
| bullseye | Fixed | 4.8.2+xsa245-0+deb9u1 |
| bookworm | Fixed | 4.8.2+xsa245-0+deb9u1 |
References
- http://www.securityfocus.com/bid/100819
- http://www.securitytracker.com/id/1039351
- http://xenbits.xen.org/xsa/advisory-234.html
- https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
- https://support.citrix.com/article/CTX227185
- https://www.debian.org/security/2017/dsa-4050
- https://www.suse.com/security/cve/CVE-2017-14319.html
- https://security-tracker.debian.org/tracker/CVE-2017-14319
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.