PT-2023-11528 · Espruino · Espruino

L0Kihardtop · Published 2023-04-04 · Updated 2023-04-10 · CVE-2020-19693

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Espruino version 6ea4c0a

Description An issue in Espruino allows an attacker to execute arbitrary code via the oldFunc parameter of the "jswrap object.c:jswrap function replacewith" endpoint.

Recommendations For Espruino version 6ea4c0a, consider disabling the jswrap function replacewith function until a patch is available to prevent exploitation. Avoid using the oldFunc parameter in the affected endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-19693

Affected Products

Espruino

References · 4

• 🔥 https://github.com/espruino/Espruino/issues/1684 · Exploit
• https://osv.dev/vulnerability/CVE-2020-19693 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-19693 · Security Note
• https://t.me/cvenotify/47483 · Telegram Post