HIGH
There are memory leaks in LibSass 3.4.5 triggered by deeply nested code, such as code with a long sequence of open parenthesis characters, leading to a remote denial of service attack
Published Aug 18, 2017
7.5
HIGHCVSS 3.0
EPSS 1.23%
Description
There are memory leaks in LibSass 3.4.5 triggered by deeply nested code, such as code with a long sequence of open parenthesis characters, leading 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.
1.23% 0.01225
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01225
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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.23% (0.01225) | 67.72th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.23% (0.01225) | 67.47th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.16% (0.00157) | 52.56th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.16% (0.00157) | 51.56th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.14% (0.00145) | 49.35th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.13% (0.00131) | 46.85th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.20% (0.00197) | 56.80th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.18% (0.00182) | 53.68th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | 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 | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.65% (0.00651) | 0.00th | v1 |
Weaknesses (1)
References (1)
- https://bugzilla.redhat.com/show_bug.cgi?id=1482331 x_refsource_MISCIssue TrackingThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1482331 | x_refsource_MISCIssue TrackingThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 18, 2017
Updated Sep 16, 2024
Reserved Aug 18, 2017
Link CVE-2017-12962
CISA Vulnrichment
Updated n/a