PT-2021-4901 · Delta Electronics · Dopsoft 2

Kimiya · Published 2021-08-09 · Updated 2021-10-04 · CVE-2021-38402

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 Delta Electronic DOPSoft 2 versions 2.00.07 and prior

Description The issue arises from a lack of proper validation of user-supplied data when parsing specific project files, leading to a stack-based buffer overflow during font string handling. This could allow an attacker to execute code in the context of the current process.

Recommendations For Delta Electronic DOPSoft 2 versions 2.00.07 and prior, consider disabling the font string handling feature until a patch is available to prevent potential exploitation. Restrict access to project file parsing to minimize the risk of buffer overflow attacks. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

BDU:2021-05636

CVE-2021-38402

ZDI-21-959

Affected Products

Dopsoft 2

References · 6

• https://bdu.fstec.ru/vul/2021-05636 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-959 · Security Note
• https://osv.dev/vulnerability/CVE-2021-38402 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-38402 · Security Note
• https://us-cert.cisa.gov/ics/advisories/icsa-21-252-02 · Note
• https://t.me/cibsecurity/29063 · Telegram Post