| Name | CVE-2018-18883 |
| Description | An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecified other impact because nested VT-x is not properly restricted. |
| 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) |
| NVD severity | high |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| xen (PTS) | jessie | 4.4.1-9+deb8u10 | fixed |
| jessie (security) | 4.4.4lts5-0+deb8u1 | fixed | |
| stretch (security), stretch | 4.8.5.final+shim4.10.4-1+deb9u12 | fixed | |
| buster, buster (security) | 4.11.3+24-g14b62ab3e5-1~deb10u1 | fixed | |
| bullseye, sid | 4.11.3+24-g14b62ab3e5-1 | 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) | 4.11.1-1 | |||
| xen | source | jessie | (not affected) | |||
| xen | source | stretch | (not affected) |
[stretch] - xen <not-affected> (Only affects 4.9 and later)
[jessie] - xen <not-affected> (Only affects 4.9 and later)
https://xenbits.xen.org/xsa/advisory-278.txt