| Name | CVE-2015-7812 |
| Description | The hypercall_create_continuation function in arch/arm/domain.c in Xen 4.4.x through 4.6.x allows local guest users to cause a denial of service (host crash) via a preemptible hypercall to the multicall interface. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| References | DSA-3414-1 |
| NVD severity | medium (attack range: local) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| xen (PTS) | wheezy | 4.1.4-3+deb7u9 | fixed |
| wheezy (security) | 4.1.6.lts1-13 | fixed | |
| jessie (security), jessie | 4.4.1-9+deb8u10 | fixed | |
| buster, sid, stretch | 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5 | fixed | |
| stretch (security) | 4.8.3+xsa262+shim4.10.0+comet3-1+deb9u7 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| xen | source | (unstable) | 4.6.0-1 | medium | ||
| xen | source | jessie | 4.4.1-9+deb8u3 | medium | DSA-3414-1 | |
| xen | source | squeeze | (unfixed) | end-of-life | ||
| xen | source | wheezy | (not affected) |
[wheezy] - xen <not-affected> (arm not yet supported)
[squeeze] - xen <end-of-life> (not supported in squeeze-lts)
http://xenbits.xen.org/xsa/advisory-145.html