| Name | CVE-2015-7835 |
| Description | The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-3390-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| xen (PTS) | bookworm, bookworm (security) | 4.17.5+72-g01140da4e8-1 | fixed |
| trixie (security), trixie | 4.20.3+127-gc42374a105-0+deb13u1 | fixed | |
| forky, sid | 4.20.3+127-gc42374a105-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| xen | source | squeeze | (unfixed) | end-of-life | ||
| xen | source | wheezy | 4.1.4-3+deb7u9 | DSA-3390-1 | ||
| xen | source | jessie | 4.4.1-9+deb8u2 | DSA-3390-1 | ||
| xen | source | (unstable) | 4.6.0-1 |
[squeeze] - xen <end-of-life> (not supported in squeeze-lts)
http://xenbits.xen.org/xsa/advisory-148.html