HIGH
There is a heap based buffer over-read in lexer.hpp of LibSass 3.4.5
Published Jul 16, 2017
7.5
HIGHCVSS 3.0
EPSS 1.72%
Description
There is a heap based buffer over-read in lexer.hpp of LibSass 3.4.5. A crafted input will lead to a remote denial of service attack.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
7.5 HIGH NVD
CVSS:3.0/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
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.
1.72% 0.01717
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01717
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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.72% (0.01717) | 76.61th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.72% (0.01717) | 74.39th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.16% (0.00156) | 52.40th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.16% (0.00156) | 51.40th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.15% (0.00150) | 50.15th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.14% (0.00136) | 47.69th | v3 (v2023.03.01) |
| May 26, 2023 | 0.22% (0.00224) | 59.26th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.21% (0.00207) | 56.87th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.65% (0.00651) | 18.22th | v1 |
| Jan 6, 2022 | 0.65% (0.00651) | 17.65th | v1 |
| Sep 1, 2021 | 0.65% (0.00651) | 45.91th | v1 |
| Apr 14, 2021 | 0.65% (0.00651) | 0.00th | v1 |
Weaknesses (1)
References (1)
- https://bugzilla.redhat.com/show_bug.cgi?id=1470714 x_refsource_MISCExploitIssue TrackingThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1470714 | x_refsource_MISCExploitIssue TrackingThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jul 16, 2017
Updated Sep 16, 2024
Reserved Jul 15, 2017
Link CVE-2017-11341
CISA Vulnrichment
Updated n/a