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.