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CVE-2017-12134

Good to know:

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Date: August 24, 2017

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.

Language: C

Severity Score

Related Resources (15)

https://bugzilla.redhat.com/show_bug.cgi?id=1477656
https://usn.ubuntu.com/3655-2/
https://access.redhat.com/security/cve/CVE-2017-12134
https://support.citrix.com/article/CTX225941
http://www.debian.org/security/2017/dsa-3981
http://www.openwall.com/lists/oss-security/2017/08/15/4
https://usn.ubuntu.com/3655-1/
http://www.securityfocus.com/bid/100343
http://www.securitytracker.com/id/1039176
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-12134
https://nvd.nist.gov/vuln/detail/CVE-2017-12134
https://security.gentoo.org/glsa/201801-14
https://security-tracker.debian.org/tracker/CVE-2017-12134
http://xenbits.xen.org/xsa/advisory-229.html
https://www.mend.io/vulnerability-database/CVE-2017-12134

Severity Score

Weakness Type (CWE)

Incorrect Calculation

CWE-682

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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