| Name | CVE-2018-7542 |
| Description | An issue was discovered in Xen 4.8.x through 4.10.x allowing x86 PVH guest OS users to cause a denial of service (NULL pointer dereference and hypervisor crash) by leveraging the mishandling of configurations that lack a Local APIC. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-4131-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| xen (PTS) | bullseye | 4.14.6-1 | fixed |
| bullseye (security) | 4.14.5+94-ge49571868d-1 | fixed |
| bookworm | 4.17.3+10-g091466ba55-1~deb12u1 | fixed |
| bookworm (security) | 4.17.5+23-ga4e5191dc0-1 | fixed |
| trixie | 4.17.3+36-g54dacb5c02-1 | fixed |
| sid | 4.19.1-1 | 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 | (not affected) | | | |
| xen | source | jessie | (not affected) | | | |
| xen | source | stretch | 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5 | | DSA-4131-1 | |
| xen | source | (unstable) | 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5 | | | |
Notes
[jessie] - xen <not-affected> (Vulnerable code introduced later)
[wheezy] - xen <not-affected> (Vulnerable code introduced later)
https://xenbits.xen.org/xsa/advisory-256.html