Improper input validation in Samba
CVE-2021-23192
A flaw was found in the way samba implemented DCE/RPC. If a client to a Samba server sent a very large DCE/RPC request, and chose to fragment it, an attacker could replace later fragments with their own data, bypassing the signature requirements.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.020 (78.2th 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:H/A:N.
Affected products
- Samba
- N/a Samba — versions Affects samba v4.10.0 to 4.15.1, Fixed in samba v4.15.2, v4.14.10 and v4.13.14.
Weakness classification (CWE)
References
- secalert@redhat.com (Third Party Advisory, Issue Tracking)
- secalert@redhat.com (Patch, Vendor Advisory)
- secalert@redhat.com (Third Party Advisory)
- secalert@redhat.com (vendor-advisory)
Frequently asked questions
- What is CVE-2021-23192?
- CVE-2021-23192 is a high-severity vulnerability in Samba, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2022-03-02.
- How severe is CVE-2021-23192?
- High severity. CVSS v3 base score is 7.5 out of 10.