CVE-2018-11597

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-05-31 · updated 2026-06-17
Weakness: CWE-674

Description

Espruino before 1.99 allows attackers to cause a denial of service (application crash) with a user crafted input file via a Buffer Overflow during syntax parsing because of a missing check for stack exhaustion with many '{' characters in jsparse.c.

Affected products

Espruino: before 1.99 — fixed in 1.99

How to fix

Upgrade to a fixed version: Espruino 1.99. Check the vendor advisory for mitigations.

References

https://github.com/espruino/Espruino/commit/51380baf17241728b6d48cdb84140b931e3e3cc5
https://github.com/espruino/Espruino/issues/1448
https://github.com/espruino/Espruino/commit/51380baf17241728b6d48cdb84140b931e3e3cc5
https://github.com/espruino/Espruino/issues/1448

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