The init_copy function in kernel.c in mruby 1.4.1 makes initialize_copy calls for TT_ICLASS objects, which allows attackers to cause a denial of service (mrb_hash_keys uninitialized pointer and application crash) or possibly have unspecified other impact
Published Jun 5, 2018
9.8
CRITICALCVSS 3.1
EPSS 2.20%
Description
The init_copy function in kernel.c in mruby 1.4.1 makes initialize_copy calls for TT_ICLASS objects, which allows attackers to cause a denial of service (mrb_hash_keys uninitialized pointer and application crash) or possibly have unspecified other impact.
Affected products
No data.
Configuration 2
- 9.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/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 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.20% (0.02203) | 81.92th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.20% (0.02203) | 80.16th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.72% (0.00724) | 80.86th | v3 (v2023.03.01) |
| May 3, 2024 | 0.72% (0.00724) | 80.53th | v3 (v2023.03.01) |
| Dec 6, 2023 | 0.72% (0.00724) | 78.45th | v3 (v2023.03.01) |
| Oct 27, 2023 | 1.02% (0.01022) | 82.14th | v3 (v2023.03.01) |
| Jul 8, 2023 | 1.20% (0.01204) | 83.34th | v3 (v2023.03.01) |
| May 30, 2023 | 1.04% (0.01039) | 81.79th | v3 (v2023.03.01) |
| May 8, 2023 | 1.03% (0.01031) | 81.63th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.19% (0.01194) | 82.94th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Oct 15, 2022 | 0.95% (0.00954) | 34.95th | v2 (v2022.01.01) |
| May 7, 2022 | 0.95% (0.00954) | 32.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.78% (0.00777) | 21.50th | v1 |
| Jan 6, 2022 | 0.78% (0.00777) | 20.90th | v1 |
| Sep 1, 2021 | 0.78% (0.00777) | 50.67th | v1 |
| Apr 14, 2021 | 0.78% (0.00777) | 0.00th | v1 |
References (3)
- https://github.com/mruby/mruby/commit/b64ce17852b180dfeea81cf458660be41a78974d x_refsource_MISCPatchThird Party Advisory
- https://github.com/mruby/mruby/issues/4027 x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/05/msg00006.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/mruby/mruby/commit/b64ce17852b180dfeea81cf458660be41a78974d | x_refsource_MISCPatchThird Party Advisory | |
| https://github.com/mruby/mruby/issues/4027 | x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2022/05/msg00006.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory |
Change history (0)
No recorded changes yet.