CVE-2016-4020 (GCVE-0-2016-4020)

Vulnerability from cvelistv5 – Published: 2016-05-25 15:00 – Updated: 2024-08-06 00:17
VLAI
Summary
The patch_instruction function in hw/i386/kvmvapic.c in QEMU does not initialize the imm32 variable, which allows local guest OS administrators to obtain sensitive information from host stack memory by accessing the Task Priority Register (TPR).
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=69… x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1313686 x_refsource_CONFIRM
https://lists.gnu.org/archive/html/qemu-devel/201… mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/86067 vdb-entryx_refsource_BID
https://lists.gnu.org/archive/html/qemu-devel/201… mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHSA-2017:2392 vendor-advisoryx_refsource_REDHAT
https://security.gentoo.org/glsa/201609-01 vendor-advisoryx_refsource_GENTOO
http://www.ubuntu.com/usn/USN-2974-1 vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2018… mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHSA-2017:2408 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:1856 vendor-advisoryx_refsource_REDHAT
Date Public
2016-04-07 00:00
Show details on NVD website
To clipboard 

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  }
}


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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.