xen: hypervisor stack leak in x86 I/O intercept code (XSA-239)
Published Oct 18, 2017
6.8
MEDIUMCVSS 3.0
EPSS 0.41%
Description
An issue was discovered in Xen through 4.9.x allowing x86 HVM guest OS users to obtain sensitive information from the host OS (or an arbitrary guest OS) because intercepted I/O operations can cause a write of data from uninitialized hypervisor stack memory.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
AV:L/AC:L/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
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.41% (0.00410) | 32.84th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.41% (0.00407) | 32.18th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00079) | 20.98th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00062) | 28.36th | v3 (v2023.03.01) |
| Jun 11, 2024 | 0.06% (0.00062) | 26.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00062) | 24.34th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.10% (0.01104) | 54.09th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.10% (0.01104) | 52.45th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.10% (0.01104) | 50.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.10% (0.01104) | 28.85th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.86% (0.01865) | 48.06th | v1 |
| Jan 6, 2022 | 1.86% (0.01865) | 47.54th | v1 |
| Sep 1, 2021 | 1.86% (0.01865) | 76.13th | v1 |
| Apr 14, 2021 | 1.86% (0.01865) | 0.00th | v1 |
References (13)
- http://www.securityfocus.com/bid/101496 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039568 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://xenbits.xen.org/xsa/advisory-239.html
- https://access.redhat.com/security/cve/CVE-2017-15589 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1499819 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2017/11/msg00027.html mailing-listx_refsource_MLIST
- https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2017-15589
- https://security.gentoo.org/glsa/201801-14 vendor-advisoryx_refsource_GENTOO
- https://support.citrix.com/article/CTX228867 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2017-15589
- https://www.debian.org/security/2017/dsa-4050 vendor-advisoryx_refsource_DEBIAN
- https://xenbits.xen.org/xsa/advisory-239.html x_refsource_CONFIRMMailing ListMitigationPatchVendor Advisory
Change history (0)
No recorded changes yet.