HIGH
ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in ssl_parse_server_psk_hint() that could cause a crash on invalid input
Published Apr 10, 2018
7.5
HIGHCVSS 3.1
EPSS 2.12%
Description
ARM mbed TLS before 2.1.11, before 2.7.2, and before 2.8.0 has a buffer over-read in ssl_parse_server_psk_hint() that could cause a crash on invalid input.
Affected products
No data.
Configuration 1
Configuration 2
OR
- 8.0
- 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.
7.5 HIGH NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.12% 0.02117
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02117
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.12% (0.02117) | 81.17th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.09% (0.02087) | 79.08th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.38% (0.00376) | 73.03th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.38% (0.00376) | 72.01th | v3 (v2023.03.01) |
| Nov 4, 2023 | 0.38% (0.00376) | 69.82th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.41% (0.00412) | 70.66th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.36% (0.00356) | 67.61th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.25% (0.01247) | 30.57th | v5 (v2026.06.15) |
| Nov 24, 2021 | 1.25% (0.01247) | 69.32th | v1 |
| Sep 1, 2021 | 1.04% (0.01040) | 64.49th | v1 |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
Weaknesses (1)
References (5)
- https://github.com/ARMmbed/mbedtls/commit/5224a7544c95552553e2e6be0b4a789956a6464e x_refsource_CONFIRMPatchThird Party Advisory
- https://github.com/ARMmbed/mbedtls/commit/740b218386083dc708ce98ccc94a63a95cd5629e x_refsource_CONFIRMPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://tls.mbed.org/tech-updates/releases/mbedtls-2.8.0-2.7.2-and-2.1.11-released x_refsource_CONFIRMRelease NotesVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/ARMmbed/mbedtls/commit/5224a7544c95552553e2e6be0b4a789956a6464e | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://github.com/ARMmbed/mbedtls/commit/740b218386083dc708ce98ccc94a63a95cd5629e | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://tls.mbed.org/tech-updates/releases/mbedtls-2.8.0-2.7.2-and-2.1.11-released | x_refsource_CONFIRMRelease NotesVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Apr 10, 2018
Updated Aug 5, 2024
Reserved Apr 10, 2018
Link CVE-2018-9989
CISA Vulnrichment
Updated n/a