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CVE-2013-4361

Date: October 1, 2013

The fbld instruction emulation in Xen 3.3.x through 4.3.x does not use the correct variable for the source effective address, which allows local HVM guests to obtain hypervisor stack information by reading the values used by the instruction.

Language: C

Severity Score

Related Resources (8)

http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
https://security-tracker.debian.org/tracker/CVE-2013-4361
https://nvd.nist.gov/vuln/detail/CVE-2013-4361
http://security.gentoo.org/glsa/glsa-201407-03.xml
http://lists.opensuse.org/opensuse-updates/2013-11/msg00009.html
http://www.debian.org/security/2014/dsa-3006
http://www.openwall.com/lists/oss-security/2013/09/30/3
https://www.mend.io/vulnerability-database/CVE-2013-4361

Severity Score

Weakness Type (CWE)

Information Leak / Disclosure

CWE-200

CVSS v3.1

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

CVSS v2

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

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