| Name | CVE-2015-4163 |
| Description | GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table operation version, which allows local guest domains to cause a denial of service (NULL pointer dereference) via a hypercall without a GNTTABOP_setup_table or GNTTABOP_set_version. |
| 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-3286-1 |
| NVD severity | medium (attack range: local) |
| Debian Bugs | 795721 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| xen (PTS) | jessie (security), jessie | 4.4.1-9+deb8u10 | fixed |
| stretch (security) | 4.8.3+xsa262+shim4.10.0+comet3-1+deb9u7 | fixed | |
| buster, stretch, sid | 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5 | 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 | 795721 | |
| xen | source | jessie | 4.4.1-9+deb8u1 | medium | DSA-3286-1 | |
| xen | source | squeeze | (not affected) | |||
| xen | source | wheezy | 4.1.4-3+deb7u8 | medium | DSA-3286-1 |
[wheezy] - xen <not-affected> (Xen 4.2 onwards are vulnerable)
[squeeze] - xen <not-affected> (Xen 4.2 onwards are vulnerable)
http://xenbits.xen.org/xsa/advisory-134.html