[Oraclevm-errata] OVMSA-2013-0072 Important: Oracle VM 3.2 xen security update
Errata Announcements for Oracle VM
oraclevm-errata at oss.oracle.com
Mon Oct 14 09:02:08 PDT 2013
Oracle VM Security Advisory OVMSA-2013-0072
The following updated rpms for Oracle VM 3.2 have been uploaded to the
Unbreakable Linux Network:
x86_64:
xen-4.1.3-25.el5.53.26.x86_64.rpm
xen-devel-4.1.3-25.el5.53.26.x86_64.rpm
xen-tools-4.1.3-25.el5.53.26.x86_64.rpm
SRPMS:
http://oss.oracle.com/oraclevm/server/3.2/SRPMS-updates/xen-4.1.3-25.el5.53.26.src.rpm
Description of changes:
[4.1.3-25.el5.53.26]
- x86: check segment descriptor read result in 64-bit OUTS emulation
When emulating such an operation from a 64-bit context (CS has long
mode set), and the data segment is overridden to FS/GS, the result of
reading the overridden segment's descriptor (read_descriptor) is not
checked. If it fails, data_base is left uninitialized.
This can lead to 8 bytes of Xen's stack being leaked to the guest
(implicitly, i.e. via the address given in a #PF).
Coverity-ID: 1055116
This is CVE-2013-4368 / XSA-67.
Signed-off-by: Matthew Daley <mattjd at gmail.com>
Fix formatting.
Signed-off-by: Jan Beulich <jbeulich at suse.com>
Signed-off-by: Chuck Anderson <chuck.anderson at oracle.com>
Reviewed-by: Guangyu Sun <guangyu.sun at oracle.com> [bug 17529205]
{CVE-2013-4368}
More information about the Oraclevm-errata
mailing list