CRITICAL
md_is_link_reference_definition_helper in md4c 0.2.5 has a heap-based buffer over-read because md_is_link_label mishandles loop termination
Published May 29, 2018
9.8
CRITICALCVSS 3.0
EPSS 1.63%
Description
md_is_link_reference_definition_helper in md4c 0.2.5 has a heap-based buffer over-read because md_is_link_label mishandles loop termination.
Affected products
No data.
- 0.2.5
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.
No CVSS v3.1 score for this CVE.
9.8 CRITICAL NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.63% 0.01630
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01630
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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.63% (0.01630) | 75.35th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.63% (0.01630) | 73.04th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.20% (0.00201) | 58.52th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.20% (0.00201) | 57.65th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.19% (0.00194) | 56.23th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.17% (0.00170) | 52.90th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.22% (0.00222) | 59.43th | v3 (v2023.03.01) |
| May 8, 2023 | 0.16% (0.00156) | 50.57th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.22% (0.00222) | 58.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | 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 | 0.42% (0.00416) | 10.04th | v1 |
| Jan 6, 2022 | 0.42% (0.00416) | 9.79th | v1 |
| Sep 1, 2021 | 0.42% (0.00416) | 25.53th | v1 |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
Weaknesses (1)
References (1)
- https://github.com/mity/md4c/issues/37 x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/mity/md4c/issues/37 | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published May 29, 2018
Updated Sep 16, 2024
Reserved May 29, 2018
Link CVE-2018-11547
CISA Vulnrichment
Updated n/a