A vulnerability, which was classified as critical, was found in JerryScript 1.0. Affected is the function lit_read_code_unit_from_hex of the file parser/regexp/re-parser.c. The manipulation with the input value RegExp("[\\u0") leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in JerryScript 1.0. There is a heap-based buffer over-read in the lit_read_code_unit_from_hex function via a RegExp("[\\u0") payload, related to re_parse_char_class in parser/regexp/re-parser.c.

The bug was discovered 03/01/2018. The weakness was disclosed 05/24/2018 (Website). The advisory is available at github.com. This vulnerability is traded as CVE-2018-11419 since 05/24/2018. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 84 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entry VDB-118181 is pretty similar.

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Name

• JerryScript

Version

• 1.0

License

• free

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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