Description
Xen 4.x, when using Intel VT-d for a bus mastering capable PCI device, does not properly check the source when accessing a bridge device's interrupt remapping table entries for MSI interrupts, which allows local guest domains to cause a denial of service (interrupt injection) via unspecified vectors.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | xen | 4.1.4-4 | — |
| Debian 13 | xen | 4.1.4-4 | — |
| Debian 12 | xen | 4.1.4-4 | — |
| Debian 7 | xen | 4.1.4-3+deb7u1 | DSA-2666-1 |
| Debian 6.0 | xen | 4.0.1-5.11 | DSA-2666-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xen | 4.7.0_12-1.3 | openSUSE-SU-2024:10196-1 |
Advisories 2
- DSA-2666-1 xen - several Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10196-1 xen-4.7.0_12-1.3 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- 55082 third-party-advisory
- FEDORA-2013-7432 vendor-advisory
- GLSA-201309-24 vendor-advisory
- DSA-2666 vendor-advisory
- 59617 vdb-entry
- 53312 third-party-advisory
- SUSE-SU-2014:0446 vendor-advisory
- xen-cve20131952-dos(83968) vdb-entry
- 92984 vdb-entry
- [oss-security] 20130502 Xen Security Advisory 49 (CVE-2013-1952) - VT-d interrupt remapping source validation flaw for bridges mailing-list