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CVE-2011-2519

Good to know:

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Date: December 26, 2013

Xen in the Linux kernel, when running a guest on a host without hardware assisted paging (HAP), allows guest users to cause a denial of service (invalid pointer dereference and hypervisor crash) via the SAHF instruction.

Language: C

Severity Score

Related Resources (7)

https://bugzilla.redhat.com/show_bug.cgi?id=718882
http://xenbits.xen.org/hg/xen-3.1-testing.hg/rev/15644
https://nvd.nist.gov/vuln/detail/CVE-2011-2519
http://rhn.redhat.com/errata/RHSA-2011-1212.html
http://www.openwall.com/lists/oss-security/2011/08/30/1
https://access.redhat.com/security/cve/CVE-2011-2519
https://www.mend.io/vulnerability-database/CVE-2011-2519

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Top Fix

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CVSS v3.1

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

CVSS v2

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

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