xen: information leak through outs instruction emulation (XSA-67)
Published Oct 17, 2013
1.9
LOWCVSS 2.0
EPSS 0.37%
Description
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.
Affected products
No data.
- ≤ 4.3.0
- 3.0.2
- 3.0.3
- 3.0.4
- 3.1.3
- 3.1.4
- 3.2.0
- 3.2.1
- 3.2.2
- 3.2.3
- 3.3.0
- 3.3.1
- 3.3.2
- 3.4.0
- 3.4.1
- 3.4.2
- 3.4.3
- 3.4.4
- 4.0.0
- 4.0.1
- 4.0.2
- 4.0.3
- 4.0.4
- 4.1.0
- 4.1.1
- 4.1.2
- 4.1.3
- 4.1.4
- 4.1.5
- 4.1.6.1
- 4.2.0
- 4.2.1
- 4.2.2
- 4.2.3
No data.
Red Hat Enterprise Linux 5
kernel-0:2.6.18-371.1.2.el5
Fixed · RHSA-2013:1449
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-371.1.2.el5 | Fixed | RHSA-2013:1449 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.37% (0.00367) | 28.23th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.37% (0.00367) | 28.32th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00093) | 24.21th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00060) | 27.26th | v3 (v2023.03.01) |
| Jun 6, 2024 | 0.06% (0.00060) | 25.16th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00060) | 23.13th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.28% (0.01282) | 67.79th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.55% (0.01547) | 74.40th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
References (14)
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00015.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2013-11/msg00009.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2013-1449.html vendor-advisoryx_refsource_REDHAT
- http://security.gentoo.org/glsa/glsa-201407-03.xml vendor-advisoryx_refsource_GENTOO
- http://www.debian.org/security/2014/dsa-3006 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2013/10/10/10 mailing-listx_refsource_MLIST
- http://xenbits.xen.org/xsa/advisory-67.html
- https://access.redhat.com/security/cve/CVE-2013-4368 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1012550 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/87799 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2013-4368
- https://www.cve.org/CVERecord?id=CVE-2013-4368
Change history (0)
No recorded changes yet.