Description
The (1) domain_pirq_to_emuirq and (2) physdev_unmap_pirq functions in Xen 2.2 allows local guest OS administrators to cause a denial of service (Xen crash) via a crafted pirq value that triggers an out-of-bounds read.
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 | 4.1.3-4 | — |
| Debian 13 | xen | 4.1.3-4 | — |
| Debian 12 | xen | 4.1.3-4 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xen | 4.7.0_12-1.3 | openSUSE-SU-2024:10196-1 |
Advisories 1
- 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
- 51413 third-party-advisory
- 51200 third-party-advisory
- GLSA-201309-24 vendor-advisory
- SUSE-SU-2012:1486 vendor-advisory
- xen-domainpirqtoemuirq-dos(80023) vdb-entry
- [Xen-announce] 20121113 Xen Security Advisory 21 (CVE-2012-4536) - pirq range check DoS vulnerability mailing-list
- [oss-security] 20121113 Xen Security Advisory 21 (CVE-2012-4536) - pirq range check DoS vulnerability mailing-list
- 1027760 vdb-entry
- 87297 vdb-entry
- openSUSE-SU-2012:1572 vendor-advisory
- SUSE-SU-2012:1487 vendor-advisory
- 51352 third-party-advisory
- 51324 third-party-advisory
- GLSA-201604-03 vendor-advisory
- 56498 vdb-entry
- openSUSE-SU-2012:1573 vendor-advisory