Vulnerability Details : 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 category: Input validation
Products affected by CVE-2021-23192
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-23192
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 14 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-23192
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-23192
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: secalert@redhat.com (Secondary)
References for CVE-2021-23192
-
https://ubuntu.com/security/CVE-2021-23192
CVE-2021-23192 | UbuntuThird Party Advisory
-
https://security.gentoo.org/glsa/202309-06
Samba: Multiple Vulnerabilities (GLSA 202309-06) — Gentoo security
-
https://www.samba.org/samba/security/CVE-2021-23192.html
Patch;Vendor Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=2019666
2019666 – (CVE-2021-23192) CVE-2021-23192 samba: Subsequent DCE/RPC fragment injection vulnerabilityIssue Tracking;Third Party Advisory
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