| Name | CVE-2018-19962 |
| Description | An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because small IOMMU mappings are unsafely combined into larger ones. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1949-1, DSA-4369-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| xen (PTS) | jessie, jessie (lts) | 4.4.4lts5-0+deb8u1 | fixed |
| stretch (security), stretch (lts), stretch | 4.8.5.final+shim4.10.4-1+deb9u12 | fixed |
| buster, buster (security) | 4.11.4+107-gef32c7afa2-1 | fixed |
| bullseye | 4.14.6-1 | fixed |
| bullseye (security) | 4.14.5+94-ge49571868d-1 | fixed |
| bookworm | 4.17.3+10-g091466ba55-1~deb12u1 | fixed |
| trixie | 4.17.3+10-g091466ba55-1 | fixed |
| sid | 4.17.3+36-g54dacb5c02-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| xen | source | wheezy | (unfixed) | end-of-life | | |
| xen | source | jessie | 4.4.4lts5-0+deb8u1 | | DLA-1949-1 | |
| xen | source | stretch | 4.8.5+shim4.10.2+xsa282-1+deb9u11 | | DSA-4369-1 | |
| xen | source | (unstable) | 4.11.1-1 | | | |
Notes
https://xenbits.xen.org/xsa/advisory-275.txt