Core: DoS via bad certificate
Published Nov 15, 2017
7.5
HIGHCVSS 3.0
EPSS 5.42%
Description
.NET Core 1.0, 1.1, and 2.0 allow an unauthenticated attacker to remotely cause a denial of service attack against a .NET Core web application by improperly parsing certificate data. A denial of service vulnerability exists when .NET Core improperly handles parsing certificate data, aka ".NET CORE Denial Of Service Vulnerability".
Affected products
-
- Version .NET Core 1.0, .NET Core 1.1, and .NET Core 2.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Microsoft Corporation | n/a | n/a |
|
- 1.0
- 1.1
- 2.0
No data.
.NET Core on Red Hat Enterprise Linux
rh-dotnet20-dotnet-0:2.0.3-4.el7
Fixed · RHSA-2017:3248
.NET Core on Red Hat Enterprise Linux
rh-dotnet20-dotnet-0:2.0.3-4.el7
Fixed · RHSA-2017:3248
.NET Core on Red Hat Enterprise Linux
rh-dotnet20-dotnet-0:2.0.3-4.el7
Fixed · RHSA-2017:3248
.NET Core on Red Hat Enterprise Linux
rh-dotnetcore10-dotnetcore-0:1.0.8-1.el7
Fixed · RHSA-2017:3248
.NET Core on Red Hat Enterprise Linux
rh-dotnetcore10-dotnetcore-0:1.0.8-1.el7
Fixed · RHSA-2017:3248
.NET Core on Red Hat Enterprise Linux
rh-dotnetcore10-dotnetcore-0:1.0.8-1.el7
Fixed · RHSA-2017:3248
.NET Core on Red Hat Enterprise Linux
rh-dotnetcore11-dotnetcore-0:1.1.5-1.el7
Fixed · RHSA-2017:3248
.NET Core on Red Hat Enterprise Linux
rh-dotnetcore11-dotnetcore-0:1.1.5-1.el7
Fixed · RHSA-2017:3248
.NET Core on Red Hat Enterprise Linux
rh-dotnetcore11-dotnetcore-0:1.1.5-1.el7
Fixed · RHSA-2017:3248
| Product | Package | State | Advisory |
|---|---|---|---|
| .NET Core on Red Hat Enterprise Linux | rh-dotnet20-dotnet-0:2.0.3-4.el7 | Fixed | RHSA-2017:3248 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnet20-dotnet-0:2.0.3-4.el7 | Fixed | RHSA-2017:3248 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnet20-dotnet-0:2.0.3-4.el7 | Fixed | RHSA-2017:3248 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnetcore10-dotnetcore-0:1.0.8-1.el7 | Fixed | RHSA-2017:3248 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnetcore10-dotnetcore-0:1.0.8-1.el7 | Fixed | RHSA-2017:3248 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnetcore10-dotnetcore-0:1.0.8-1.el7 | Fixed | RHSA-2017:3248 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnetcore11-dotnetcore-0:1.1.5-1.el7 | Fixed | RHSA-2017:3248 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnetcore11-dotnetcore-0:1.1.5-1.el7 | Fixed | RHSA-2017:3248 |
| .NET Core on Red Hat Enterprise Linux | rh-dotnetcore11-dotnetcore-0:1.1.5-1.el7 | Fixed | RHSA-2017:3248 |
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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/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 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 (25 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.42% (0.05423) | 92.45th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.42% (0.05423) | 91.65th | v5 (v2026.06.15) |
| Mar 18, 2026 | 13.69% (0.13685) | 94.17th | v4 (v2025.03.14) |
| Dec 17, 2025 | 9.90% (0.09898) | 92.75th | v4 (v2025.03.14) |
| May 3, 2025 | 12.96% (0.12961) | 93.68th | v4 (v2025.03.14) |
| Apr 5, 2025 | 11.07% (0.11068) | 92.84th | v4 (v2025.03.14) |
| Mar 30, 2025 | 7.83% (0.07829) | 91.17th | v4 (v2025.03.14) |
| Mar 29, 2025 | 18.47% (0.18474) | 92.16th | v4 (v2025.03.14) |
| Mar 19, 2025 | 7.83% (0.07829) | 90.92th | v4 (v2025.03.14) |
| Mar 17, 2025 | 9.80% (0.09801) | 92.40th | v4 (v2025.03.14) |
| Dec 17, 2024 | 3.62% (0.03615) | 91.53th | v3 (v2023.03.01) |
| Aug 30, 2023 | 2.61% (0.02606) | 88.94th | v3 (v2023.03.01) |
| Jul 4, 2023 | 5.05% (0.05052) | 91.74th | v3 (v2023.03.01) |
| May 17, 2023 | 2.59% (0.02593) | 88.71th | v3 (v2023.03.01) |
| May 8, 2023 | 3.03% (0.03034) | 89.47th | v3 (v2023.03.01) |
| Apr 28, 2023 | 2.46% (0.02459) | 88.42th | v3 (v2023.03.01) |
| Apr 7, 2023 | 0.88% (0.00877) | 80.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.13% (0.01134) | 82.47th | v3 (v2023.03.01) |
| Mar 6, 2023 | 8.12% (0.08117) | 93.35th | v2 (v2022.01.01) |
| Apr 1, 2022 | 8.12% (0.08117) | 92.73th | v2 (v2022.01.01) |
| Feb 4, 2022 | 8.12% (0.08117) | 82.04th | v2 (v2022.01.01) |
| Feb 3, 2022 | 13.73% (0.13734) | 89.12th | v1 |
| Jan 6, 2022 | 13.73% (0.13734) | 88.99th | v1 |
| Sep 1, 2021 | 13.73% (0.13734) | 96.05th | v1 |
| Apr 14, 2021 | 13.73% (0.13734) | 0.00th | v1 |
References (10)
- http://www.securityfocus.com/bid/101710 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039787 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:3248 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-11770 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1512992 Issue Tracking
- https://github.com/advisories/GHSA-7mfr-774f-w5r9 Advisory
- https://github.com/dotnet/announcements/issues/44
- https://nvd.nist.gov/vuln/detail/CVE-2017-11770
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11770 x_refsource_CONFIRMPatchVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-11770
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/101710 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1039787 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/errata/RHSA-2017:3248 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2017-11770 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1512992 | Issue Tracking | |
| https://github.com/advisories/GHSA-7mfr-774f-w5r9 | Advisory | |
| https://github.com/dotnet/announcements/issues/44 | ||
| https://nvd.nist.gov/vuln/detail/CVE-2017-11770 | ||
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11770 | x_refsource_CONFIRMPatchVendor Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2017-11770 |
Change history (0)
No recorded changes yet.