PT-2022-12766 · Cesanta · Cesanta Mjs

Hope-Fly · Published 2022-01-27 · Updated 2022-02-02 · CVE-2021-46521

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Cesanta MJS version 2.20.0

Description A global buffer overflow was discovered in Cesanta MJS via the c vsnprintf function at mjs/src/common/str util.c.

Recommendations For Cesanta MJS version 2.20.0, consider updating to a newer version that contains a fix for this issue, as the current version is affected by a global buffer overflow vulnerability. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2021-46521

Affected Products

Cesanta Mjs

References · 5

• 🔥 https://github.com/cesanta/mjs/issues/190 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-46521 · Security Note
• https://osv.dev/vulnerability/CVE-2021-46521 · Vendor Advisory
• https://t.me/cvenotify/26147 · Telegram Post
• https://t.me/cibsecurity/36436 · Telegram Post