CVE-2021-3156 — Sudo Heap-Based Buffer Overflow Vulnerability
CVE-2021-3156: Sudo Heap-Based Buffer Overflow Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Sudo |
| Product | Sudo |
| Date added | 2022-04-06 |
| Due date | 2022-04-27 |
| Ransomware campaign use | Unknown |
Description
Sudo contains an off-by-one error that can result in a heap-based buffer overflow, which allows for privilege escalation.
Required action (CISA)
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2021-3156
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-3156
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog