CVE-2021-20236 Detail
Current Description
A flaw was found in the ZeroMQ server in versions before 4.3.3. This flaw allows a malicious client to cause a stack buffer overflow on the server by sending crafted topic subscription requests and then unsubscribing. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Analysis Description
A flaw was found in the ZeroMQ server in versions before 4.3.3. This flaw allows a malicious client to cause a stack buffer overflow on the server by sending crafted topic subscription requests and then unsubscribing. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Severity
References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-120 | Buffer Copy without Checking Size of Input (‘Classic Buffer Overflow’) | Red Hat, Inc. |
| CWE-787 | Out-of-bounds Write | Red Hat, Inc. |
Change History
1 change records found show changes
Initial Analysis 6/02/2021 11:35:06 AM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | CPE Configuration |
OR
*cpe:2.3:a:redhat:ceph_storage:2.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
|
|
| Added | CPE Configuration |
OR
*cpe:2.3:a:zeromq:zeromq:*:*:*:*:*:*:*:* versions up to (excluding) 4.3.3
|
|
| Added | CPE Configuration |
OR
*cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
|
|
| Added | CVSS V2 |
NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) |
|
| Added | CVSS V3.1 |
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
|
| Changed | Reference Type |
https://bugzilla.redhat.com/show_bug.cgi?id=1921976 No Types Assigned |
https://bugzilla.redhat.com/show_bug.cgi?id=1921976 Issue Tracking, Third Party Advisory |
| Changed | Reference Type |
https://github.com/zeromq/libzmq/security/advisories/GHSA-qq65-x72m-9wr8 No Types Assigned |
https://github.com/zeromq/libzmq/security/advisories/GHSA-qq65-x72m-9wr8 Patch, Third Party Advisory |
Quick Info
CVE Dictionary Entry:
CVE-2021-20236
NVD Published Date:
05/28/2021
NVD Last Modified:
06/02/2021
Source:
Red Hat, Inc.