MEDIUM
In LibSass 3.5.5, a NULL Pointer Dereference in the function Sass::Eval::operator()(Sass::Supports_Operator*) in eval.cpp may cause a Denial of Service (application crash) via a crafted sass input file
Published Dec 17, 2018
6.5
MEDIUMCVSS 3.0
EPSS 2.59%
Description
In LibSass 3.5.5, a NULL Pointer Dereference in the function Sass::Eval::operator()(Sass::Supports_Operator*) in eval.cpp may cause a Denial of Service (application crash) via a crafted sass input file.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
6.5 MEDIUM NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
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.
2.59% 0.02587
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02587
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- 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 | 2.59% (0.02587) | 84.71th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.59% (0.02587) | 83.19th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.37% (0.00371) | 56.79th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.34% (0.00335) | 72.12th | v3 (v2023.03.01) |
| Jul 12, 2024 | 0.34% (0.00335) | 71.51th | v3 (v2023.03.01) |
| May 9, 2024 | 0.68% (0.00675) | 79.74th | v3 (v2023.03.01) |
| Dec 11, 2023 | 0.96% (0.00963) | 81.49th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.15% (0.01146) | 82.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.55% (0.01550) | 33.66th | v1 |
| Jan 6, 2022 | 1.55% (0.01550) | 32.96th | v1 |
| Sep 1, 2021 | 1.55% (0.01550) | 73.01th | v1 |
| Apr 14, 2021 | 1.55% (0.01550) | 0.00th | v1 |
Weaknesses (1)
References (5)
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html vendor-advisoryx_refsource_SUSE
- http://www.securityfocus.com/bid/106232 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://github.com/sass/libsass/issues/2786 x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html | vendor-advisoryx_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html | vendor-advisoryx_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html | vendor-advisoryx_refsource_SUSE | |
| http://www.securityfocus.com/bid/106232 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://github.com/sass/libsass/issues/2786 | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Dec 17, 2018
Updated Aug 5, 2024
Reserved Dec 17, 2018
Link CVE-2018-20190
CISA Vulnrichment
Updated n/a