What’s Vulnerable › Vulnerabilities

CVE-2017-9250

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-05-28 · updated 2026-06-17
• Weakness: CWE-476

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

• JerryScript: 1.0

References

• http://www.securitytracker.com/id/1038413
• https://github.com/jerryscript-project/jerryscript/commit/e58f2880df608652aff7fd35c45b242467ec0e79
• https://github.com/jerryscript-project/jerryscript/issues/1821
• https://github.com/zherczeg/jerryscript/commit/03a8c630f015f63268639d3ed3bf82cff6fa77d8
• http://www.securitytracker.com/id/1038413
• https://github.com/jerryscript-project/jerryscript/commit/e58f2880df608652aff7fd35c45b242467ec0e79
• https://github.com/jerryscript-project/jerryscript/issues/1821
• https://github.com/zherczeg/jerryscript/commit/03a8c630f015f63268639d3ed3bf82cff6fa77d8

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