CVE-2014-8594
Description
The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).
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 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 13.2 | Affected | — |
| 13.1 | Affected | — |
Debian Mixed 6 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 4.4.1-4 |
| sid | Fixed | 4.4.1-4 |
| forky | Fixed | 4.4.1-4 |
| bullseye | Fixed | 4.4.1-4 |
| bookworm | Fixed | 4.4.1-4 |
| 7.0 | Affected | — |
References
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html
- http://secunia.com/advisories/62672
- http://www.debian.org/security/2015/dsa-3140
- http://www.securityfocus.com/bid/71149
- http://xenbits.xen.org/xsa/advisory-109.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/98767
- https://security.gentoo.org/glsa/201504-04
- https://security-tracker.debian.org/tracker/CVE-2014-8594
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.