HIGH
xen: Unlimited recursion in linear pagetable de-typing (XSA-240)
Published Oct 18, 2017
8.8
HIGHCVSS 3.0
EPSS 1.56%
Description
An issue was discovered in Xen through 4.9.x allowing x86 PV guest OS users to cause a denial of service (unbounded recursion, stack consumption, and hypervisor crash) or possibly gain privileges via crafted page-table stacking.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
8.8 HIGH NVD
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality Impact High
Integrity Impact High
Availability Impact High
1 other source (Red Hat) ▾
6.8 MEDIUM Red Hat
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Changed
Confidentiality Impact None
Integrity Impact None
Availability Impact High
7.2 HIGH NVD
AV:L/AC:L/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.56% 0.01560
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01560
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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.56% (0.01560) | 74.32th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.55% (0.01547) | 71.69th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.68% (0.00675) | 69.75th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.10% (0.00103) | 43.76th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.10% (0.00103) | 42.56th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.10% (0.00103) | 40.51th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.53% (0.02526) | 81.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.53% (0.02526) | 80.10th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.53% (0.02526) | 58.61th | v2 (v2022.01.01) |
| Feb 3, 2022 | 8.63% (0.08626) | 85.56th | v1 |
| Jan 6, 2022 | 8.63% (0.08626) | 85.39th | v1 |
| Sep 1, 2021 | 8.63% (0.08626) | 92.92th | v1 |
| Apr 14, 2021 | 8.63% (0.08626) | 0.00th | v1 |
Weaknesses (1)
References (12)
- http://xenbits.xen.org/xsa/advisory-240.html
- https://access.redhat.com/security/cve/CVE-2017-15595 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1499820 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/msg00021.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2017-15595
- 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-2017-15595
- https://www.debian.org/security/2017/dsa-4050 vendor-advisoryx_refsource_DEBIAN
- https://www.exploit-db.com/exploits/43014/ exploitx_refsource_EXPLOIT-DB
- https://xenbits.xen.org/xsa/advisory-240.html x_refsource_CONFIRMMitigationPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-240.html | ||
| https://access.redhat.com/security/cve/CVE-2017-15595 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1499820 | 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/msg00021.html | mailing-listx_refsource_MLIST | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-15595 | ||
| 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-2017-15595 | ||
| https://www.debian.org/security/2017/dsa-4050 | vendor-advisoryx_refsource_DEBIAN | |
| https://www.exploit-db.com/exploits/43014/ | exploitx_refsource_EXPLOIT-DB | |
| https://xenbits.xen.org/xsa/advisory-240.html | x_refsource_CONFIRMMitigationPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Oct 18, 2017
Updated Aug 5, 2024
Reserved Oct 18, 2017
Link CVE-2017-15595
CISA Vulnrichment
Updated n/a