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CVE
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CVE-2017-12134Date: (C)2017-08-29   (M)2024-03-26


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 8.8CVSS Score : 7.2
Exploit Score: 2.0Exploit Score: 3.9
Impact Score: 6.0Impact Score: 10.0
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector: LOCAL
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: LOWAuthentication: NONE
User Interaction: NONEConfidentiality: COMPLETE
Scope: CHANGEDIntegrity: COMPLETE
Confidentiality: HIGHAvailability: COMPLETE
Integrity: HIGH 
Availability: HIGH 
  
Reference:
BID-100343
SECTRACK-1039176
DSA-3981
GLSA-201801-14
USN-3655-1
USN-3655-2
http://www.openwall.com/lists/oss-security/2017/08/15/4
http://xenbits.xen.org/xsa/advisory-229.html
https://bugzilla.redhat.com/show_bug.cgi?id=1477656
https://support.citrix.com/article/CTX225941

CPE    4
cpe:/a:citrix:xenserver:6.0.2
cpe:/a:citrix:xenserver:7.2
cpe:/a:citrix:xenserver:7.0
cpe:/a:citrix:xenserver:7.1
...
CWE    1
CWE-682
OVAL    25
oval:org.secpod.oval:def:1501947
oval:org.secpod.oval:def:1800660
oval:org.secpod.oval:def:113090
oval:org.secpod.oval:def:1800324
...

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