Access Restriction Bypass Affecting xen-devel package, versions <0:3.0.3-148.el5_11
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ORACLE5-XENDEVEL-2509491
- published10 Apr 2022
- disclosed17 Feb 2017
Introduced: 17 Feb 2017
CVE-2016-9637 (opens in a new tab)How to fix?
Upgrade Oracle:5 xen-devel to version 0:3.0.3-148.el5_11 or higher.
This issue was patched in ELSA-2016-2963.
NVD Description
Note: Versions mentioned in the description apply only to the upstream xen-devel package and not the xen-devel package as distributed by Oracle.
See How to fix? for Oracle:5 relevant fixed versions and status.
The (1) ioport_read and (2) ioport_write functions in Xen, when qemu is used as a device model within Xen, might allow local x86 HVM guest OS administrators to gain qemu process privileges via vectors involving an out-of-range ioport access.
References
- https://linux.oracle.com/cve/CVE-2016-9637.html
- https://linux.oracle.com/errata/ELSA-2016-2963.html
- http://rhn.redhat.com/errata/RHSA-2016-2963.html
- http://www.securityfocus.com/bid/94699
- http://www.securitytracker.com/id/1037397
- http://xenbits.xen.org/xsa/advisory-199.html
- https://lists.debian.org/debian-lts-announce/2018/02/msg00005.html
- https://security.gentoo.org/glsa/201612-56
- https://support.citrix.com/article/CTX219136