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CVE-2017-7228

Status Candidate

Overview

An issue (known as XSA-212) was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEM_exchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays.

Related Files

Debian Security Advisory 3847-1
Posted May 10, 2017
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3847-1 - Jan Beulich and Jann Horn discovered multiple vulnerabilities in the Xen hypervisor, which may lead to privilege escalation, guest-to-host breakout, denial of service or information leaks.

tags | advisory, denial of service, vulnerability
systems | linux, debian
advisories | CVE-2016-10013, CVE-2016-10024, CVE-2016-9932, CVE-2017-7228
MD5 | 46b33a3c85b762ad3077f102ed02350f
Xen memory_exchange() Guest Breakout
Posted Apr 10, 2017
Authored by Jann Horn, Google Security Research

Xen suffers from a broken check in memory_exchange() that permits a PV guest breakout.

tags | exploit
advisories | CVE-2017-7228
MD5 | aa31f251ac964d32a781e52a20d3824f
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