CVE-2017-9250 json
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 str…
published 2017-05-28 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-18186
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.5%
- EPSS 2.5% chance of exploitation in 30 days, percentile 84%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Exploit prediction
2.50% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- github.com https://github.com/jerryscript-project/jerryscript/issues/1821 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
References
-
github.com
/zherczeg/jerryscript/commit/03a8c630f015f63268639d3ed3bf82cff6fa77d8
third-party-advisory
-
github.com
/jerryscript-project/jerryscript/commit/e58f2880df608652aff7fd35c45b242467ec0e79
patch, third-party-advisory
-
github.com
/jerryscript-project/jerryscript/issues/1821
exploit, third-party-advisory
-
securitytracker.com
/id/1038413
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2017-9250
- NVD CVE-2017-9250
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.