Out-of-bounds Read in Fast Ber Project
CVE-2020-23921
An issue was discovered in fast_ber through v0.4. yy::yylex() in asn_compiler.hpp has a heap-based buffer over-read.
Vulnerability class: Buffer Overflow
EPSS: 0.009 (56.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H.
Affected products
- Fast_ber_project Fast_ber
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Technical Description, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-23921?
- CVE-2020-23921 is a high-severity vulnerability in Fast Ber Project, classified under Out-of-bounds Read. CVSS score: 7.1/10. Published 2021-04-21.
- How severe is CVE-2020-23921?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2020-23921 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.