xen: x86: PV kernel context switch corruption leading to Dos or privileges escalation
Published Oct 8, 2019
7.8
HIGHCVSS 3.1
EPSS 0.35%
Description
An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because a guest can manipulate its virtualised %cr4 in a way that is incompatible with Linux (and possibly other guest kernels).
Affected products
No data.
Configuration 2
- 9.0
- 10.0
No data.
Red Hat Enterprise Linux 5
kernel-xen
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-xen | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
AV:L/AC:L/Au:N/C:P/I:P/A:P
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 3, 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 3, 2026 | 0.35% (0.00352) | 26.62th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.35% (0.00352) | 26.87th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.14% (0.00143) | 31.94th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.07% (0.00074) | 34.11th | v3 (v2023.03.01) |
| Jun 10, 2024 | 0.04% (0.00045) | 14.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00045) | 12.06th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.95% (0.00950) | 30.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00950) | 28.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.67% (0.01669) | 53.27th | v2 (v2022.01.01) |
| Feb 3, 2022 | 6.60% (0.06599) | 83.03th | v1 |
| Jan 6, 2022 | 6.60% (0.06599) | 82.86th | v1 |
| Sep 1, 2021 | 1.55% (0.01550) | 73.01th | v1 |
| Apr 14, 2021 | 1.55% (0.01550) | 0.00th | v1 |
References (9)
- http://www.openwall.com/lists/oss-security/2019/10/25/8 mailing-listx_refsource_MLISTMailing List
- http://xenbits.xen.org/xsa/advisory-293.html x_refsource_CONFIRMPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2019-17347 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1771444 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2019-17347
- https://seclists.org/bugtraq/2020/Jan/21 mailing-listx_refsource_BUGTRAQMailing ListThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-17347
- https://www.debian.org/security/2020/dsa-4602 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://xenbits.xen.org/xsa/advisory-293.html x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2019/10/25/8 | mailing-listx_refsource_MLISTMailing List | |
| http://xenbits.xen.org/xsa/advisory-293.html | x_refsource_CONFIRMPatchVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2019-17347 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1771444 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2019-17347 | ||
| https://seclists.org/bugtraq/2020/Jan/21 | mailing-listx_refsource_BUGTRAQMailing ListThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2019-17347 | ||
| https://www.debian.org/security/2020/dsa-4602 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://xenbits.xen.org/xsa/advisory-293.html | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.