Candidate: CVE-2017-15597
PublicDate: 2017-10-30 14:29:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15597
 https://xenbits.xen.org/xsa/advisory-236.html
Description:
 An issue was discovered in Xen through 4.9.x. Grant copying code made an
 implication that any grant pin would be accompanied by a suitable page
 reference. Other portions of code, however, did not match up with that
 assumption. When such a grant copy operation is being done on a grant of a
 dying domain, the assumption turns out wrong. A malicious guest
 administrator can cause hypervisor memory corruption, most likely resulting
 in host crash and a Denial of Service. Privilege escalation and information
 leaks cannot be ruled out.
Ubuntu-Description:
Notes:
 mdeslaur> hypervisor packages are in universe. For
 mdeslaur> issues in the hypervisor, add appropriate
 mdeslaur> tags to each section, ex:
 mdeslaur> Tags_xen: universe-binary
Bugs:
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H [9.1 CRITICAL]

Patches_xen:
Tags_xen: universe-binary
upstream_xen: released (4.9.1)
precise/esm_xen: DNE
trusty_xen: ignored (reached end-of-life)
trusty/esm_xen: DNE (trusty was needs-triage)
xenial_xen: ignored (end of standard support, was needed)
esm-infra/xenial_xen: needed
zesty_xen: ignored (reached end-of-life)
artful_xen: ignored (reached end-of-life)
bionic_xen: released (4.9.2-0ubuntu1)
cosmic_xen: not-affected (4.9.2-0ubuntu1)
disco_xen: not-affected (4.9.2-0ubuntu1)
eoan_xen: not-affected (4.9.2-0ubuntu1)
focal_xen: not-affected (4.9.2-0ubuntu1)
groovy_xen: not-affected (4.9.2-0ubuntu1)
hirsute_xen: not-affected (4.9.2-0ubuntu1)
impish_xen: not-affected (4.9.2-0ubuntu1)
jammy_xen: not-affected (4.9.2-0ubuntu1)
devel_xen: not-affected (4.9.2-0ubuntu1)