Buffer overflow in Golang Go
CVE-2021-41771
ImportedSymbols in debug/macho (for Open or OpenFat) in Go before 1.16.10 and 1.17.x before 1.17.3 Accesses a Memory Location After the End of a Buffer, aka an out-of-bounds slice situation.
Vulnerability class: Buffer Overflow
EPSS: 0.044 (90.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Golang Go
- Debian Debian_linux — versions 9.0
- Fedoraproject Fedora — versions 34, 35
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (Vendor Advisory)
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory)
- cve@mitre.org
- cve@mitre.org (mailing-list)
Frequently asked questions
- What is CVE-2021-41771?
- CVE-2021-41771 is a high-severity vulnerability in Golang Go, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2021-11-08.
- How severe is CVE-2021-41771?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-41771 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.