Access Restriction Bypass Affecting qemu package, versions <1:2.1+dfsg-12+deb8u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.06% (31st percentile)

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  • Snyk IDSNYK-DEBIAN8-QEMU-428076
  • published3 Jun 2015
  • disclosed3 Jun 2015

Introduced: 3 Jun 2015

CVE-2015-4103  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Debian:8 qemu to version 1:2.1+dfsg-12+deb8u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Debian. See How to fix? for Debian:8 relevant fixed versions and status.

Xen 3.3.x through 4.5.x does not properly restrict write access to the host MSI message data field, which allows local x86 HVM guest administrators to cause a denial of service (host interrupt handling confusion) via vectors related to qemu and accessing spanning multiple fields.

CVSS Scores

version 3.1