The lexer_process_char_literal function in jerry-core/parser/js/js-lexer.c in JerryScript 1.0 does not skip memory allocation for empty strings, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via malformed JavaScript source code, related to the jmem_heap_free_block function
Published May 28, 2017
7.5
HIGHCVSS 3.1
EPSS 2.50%
Description
The lexer_process_char_literal function in jerry-core/parser/js/js-lexer.c in JerryScript 1.0 does not skip memory allocation for empty strings, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via malformed JavaScript source code, related to the jmem_heap_free_block function.
Affected products
No data.
- 1.0
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/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
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.50% (0.02495) | 84.10th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.50% (0.02495) | 82.54th | v5 (v2026.06.15) |
| Mar 17, 2025 | 2.38% (0.02382) | 83.89th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.45% (0.00447) | 75.83th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.45% (0.00447) | 74.26th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.45% (0.00447) | 71.85th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.43% (0.00434) | 70.61th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.62% (0.01623) | 33.90th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.62% (0.01623) | 0.00th | v1 |
References (4)
- http://www.securitytracker.com/id/1038413 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://github.com/jerryscript-project/jerryscript/commit/e58f2880df608652aff7fd35c45b242467ec0e79 x_refsource_CONFIRMPatchThird Party Advisory
- https://github.com/jerryscript-project/jerryscript/issues/1821 x_refsource_CONFIRMExploitThird Party Advisory
- https://github.com/zherczeg/jerryscript/commit/03a8c630f015f63268639d3ed3bf82cff6fa77d8 x_refsource_CONFIRMThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securitytracker.com/id/1038413 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://github.com/jerryscript-project/jerryscript/commit/e58f2880df608652aff7fd35c45b242467ec0e79 | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://github.com/jerryscript-project/jerryscript/issues/1821 | x_refsource_CONFIRMExploitThird Party Advisory | |
| https://github.com/zherczeg/jerryscript/commit/03a8c630f015f63268639d3ed3bf82cff6fa77d8 | x_refsource_CONFIRMThird Party Advisory |
Change history (0)
No recorded changes yet.