Debian Security Advisory
DSA-4236-1 xen -- security update
- Date Reported:
- 27 Jun 2018
- Affected Packages:
- xen
- Vulnerable:
- Yes
- Security database references:
- In Mitre's CVE dictionary: CVE-2018-12891, CVE-2018-12892, CVE-2018-12893.
- More information:
-
Multiple vulnerabilities have been discovered in the Xen hypervisor:
- CVE-2018-12891
It was discovered that insufficient validation of PV MMU operations may result in denial of service.
- CVE-2018-12892
It was discovered that libxl fails to honour the
readonly
flag on HVM-emulated SCSI disks. - CVE-2018-12893
It was discovered that incorrect implementation of debug exception checks could result in denial of service.
For the stable distribution (stretch), these problems have been fixed in version 4.8.3+xsa267+shim4.10.1+xsa267-1+deb9u9.
We recommend that you upgrade your xen packages.
For the detailed security status of xen please refer to its security tracker page at: https://security-tracker.debian.org/tracker/xen
- CVE-2018-12891