First published: Thu Oct 17 2013(Updated: )
The outs instruction emulation in Xen 3.1.x, 4.2.x, 4.3.x, and earlier, when using FS: or GS: segment override, uses an uninitialized variable as a segment base, which allows local 64-bit PV guests to obtain sensitive information (hypervisor stack content) via unspecified vectors related to stale data in a segment register.
Credit: secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
Xen Xen | <=4.3.0 | |
Xen Xen | =3.0.2 | |
Xen Xen | =3.0.3 | |
Xen Xen | =3.0.4 | |
Xen Xen | =3.1.3 | |
Xen Xen | =3.1.4 | |
Xen Xen | =3.2.0 | |
Xen Xen | =3.2.1 | |
Xen Xen | =3.2.2 | |
Xen Xen | =3.2.3 | |
Xen Xen | =3.3.0 | |
Xen Xen | =3.3.1 | |
Xen Xen | =3.3.2 | |
Xen Xen | =3.4.0 | |
Xen Xen | =3.4.1 | |
Xen Xen | =3.4.2 | |
Xen Xen | =3.4.3 | |
Xen Xen | =3.4.4 | |
Xen Xen | =4.0.0 | |
Xen Xen | =4.0.1 | |
Xen Xen | =4.0.2 | |
Xen Xen | =4.0.3 | |
Xen Xen | =4.0.4 | |
Xen Xen | =4.1.0 | |
Xen Xen | =4.1.1 | |
Xen Xen | =4.1.2 | |
Xen Xen | =4.1.3 | |
Xen Xen | =4.1.4 | |
Xen Xen | =4.1.5 | |
Xen Xen | =4.1.6.1 | |
Xen Xen | =4.2.0 | |
Xen Xen | =4.2.1 | |
Xen Xen | =4.2.2 | |
Xen Xen | =4.2.3 |
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