OracleVM 3.1 : xen (OVMSA-2013-0087)

This script is Copyright (C) 2014-2017 Tenable Network Security, Inc.


Synopsis :

The remote OracleVM host is missing one or more security updates.

Description :

The remote OracleVM system is missing necessary patches to address
critical security updates :

- x86/HVM: only allow ring 0 guest code to make hypercalls
Anything else would allow for privilege escalation. This
is CVE-2013-4554 / XSA-76. (CVE-2013-4554)

- x86: restrict XEN_DOMCTL_getmemlist Coverity ID 1055652
(See the code comment.) This is CVE-2013-4553 / XSA-74.
(CVE-2013-4553)

- gnttab: correct locking order reversal Coverity ID
1087189 Correct a lock order reversal between a domains
page allocation and grant table locks. This is
CVE-2013-4494 / XSA-73.

Consolidate error handling.

Backported to Xen-4.1 (CVE-2013-4494)

See also :

http://www.nessus.org/u?b92b49e7

Solution :

Update the affected xen / xen-devel / xen-tools packages.

Risk factor :

Medium / CVSS Base Score : 5.2
(CVSS2#AV:A/AC:M/Au:S/C:N/I:N/A:C)
CVSS Temporal Score : 4.5
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: OracleVM Local Security Checks

Nessus Plugin ID: 79524 ()

Bugtraq ID: 63494
63931
63933

CVE ID: CVE-2013-4494
CVE-2013-4553
CVE-2013-4554

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