A heap-based buffer over-read was discovered in wasm::SExpressionParser::skipWhitespace() in wasm-s-parser.cpp in Binaryen 1.38.22
Published Feb 10, 2019
6.5
MEDIUMCVSS 3.1
EPSS 1.15%
Description
A heap-based buffer over-read was discovered in wasm::SExpressionParser::skipWhitespace() in wasm-s-parser.cpp in Binaryen 1.38.22. A crafted wasm input can cause a segmentation fault, leading to denial-of-service, as demonstrated by wasm2js.
Affected products
No data.
- < 64
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.15% (0.01153) | 65.79th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.15% (0.01153) | 65.54th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.10% (0.00096) | 40.85th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.10% (0.00096) | 40.81th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.10% (0.00096) | 38.79th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Mar 31, 2022 | 2.56% (0.02561) | 62.63th | v2 (v2022.01.01) |
| Jan 6, 2022 | 1.84% (0.01840) | 47.32th | v1 |
| Jan 5, 2022 | 0.42% (0.00416) | 26.65th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
References (1)
- https://github.com/WebAssembly/binaryen/issues/1863 x_refsource_MISCExploitPatchThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/WebAssembly/binaryen/issues/1863 | x_refsource_MISCExploitPatchThird Party Advisory |
Change history (0)
No recorded changes yet.