PT-2021-10985 · Fast Ber · Fast Ber

Seviezhou · CVE-2020-23921 · Published 2021-04-21 · Updated 2022-10-26

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: fast ber versions prior to v0.5

Description: An issue was discovered in the yy::yylex() function located in asn compiler.hpp, which has a heap-based buffer over-read.

Recommendations: For versions prior to v0.5, update to version v0.5 or later to resolve the issue.

Exploit

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2020-23921

Affected Products

Fast Ber

References · 4

• 🔥 https://github.com/Samuel-Tyler/fast_ber/issues/30 · Exploit
• https://osv.dev/vulnerability/CVE-2020-23921 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-23921 · Security Note
• https://cwe.mitre.org/data/definitions/126.html · Note