CVE-2017-12134

Impact:
Moderate
Public Date:
2017-08-15
Bugzilla:
1477656: CVE-2017-12134 xsa229 xen: linux: Fix Xen block IO merge-ability calculation (XSA-229)

The MITRE CVE dictionary describes this issue as:

The xen_biovec_phys_mergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt block device data streams and consequently obtain sensitive memory information, cause a denial of service, or gain host OS privileges by leveraging incorrect block IO merge-ability calculation.

Find out more about CVE-2017-12134 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 7.5
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity Impact High
Availability Impact High

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 xen Will not fix

Acknowledgements

Red Hat would like to thank the Xen project for reporting this issue. Upstream acknowledges Jan H. Schönherr (Amazon) as the original reporter.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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