CVE-2017-14319

Priority
Description
A grant unmapping issue was discovered in Xen through 4.9.x. When removing
or replacing a grant mapping, the x86 PV specific path needs to make sure
page table entries remain in sync with other accounting done. Although the
identity of the page frame was validated correctly, neither the presence of
the mapping nor page writability were taken into account.
Notes
Package
Source: xen (LP Ubuntu Debian)
Upstream:needs-triage
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE (trusty was released [4.4.2-0ubuntu0.14.04.14])
Ubuntu 16.04 LTS (Xenial Xerus):released (4.6.5-0ubuntu1.4)
Binaries built from this source package are in universe and so are supported by the community. For more details see https://wiki.ubuntu.com/SecurityTeam/FAQ#Official_Support
More Information

Updated: 2020-01-29 19:58:19 UTC (commit 768ceb2fdee6790d707d0f681e1b54916744af1e)