CVE-2021-4028
Linux Kernel RDMA Communications Manager Listener Use-After-Free Weakness
Description
A flaw in the Linux kernel's implementation of RDMA communications manager listener code allowed an attacker with local access to setup a socket to listen on a high port allowing for a list element to be used after free. Given the ability to execute code, a local attacker could leverage this use-after-free to crash the system or possibly escalate privileges on the system.
INFO
Published Date :
Aug. 24, 2022, 4:15 p.m.
Last Modified :
Feb. 10, 2023, 4:18 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2021-4028 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-4028.
| URL | Resource |
|---|---|
| https://access.redhat.com/security/cve/CVE-2021-4028 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2027201 | Issue Tracking Third Party Advisory |
| https://bugzilla.suse.com/show_bug.cgi?id=1193167#c0 | Issue Tracking Patch Third Party Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0bdc5afaa74 | Mailing List Patch Vendor Advisory |
| https://lkml.org/lkml/2021/10/4/697 | Mailing List Patch Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20221228-0002/ | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Map Vulnerabilities into Different Layers of the Container Image
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-4028 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-4028 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Feb. 10, 2023
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20221228-0002/ No Types Assigned https://security.netapp.com/advisory/ntap-20221228-0002/ Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.1.15 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.10 up to (excluding) 5.10.71 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.14.10 -
CVE Modified by [email protected]
Dec. 28, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20221228-0002/ [No Types Assigned] -
Initial Analysis by [email protected]
Aug. 29, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://access.redhat.com/security/cve/CVE-2021-4028 No Types Assigned https://access.redhat.com/security/cve/CVE-2021-4028 Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2027201 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2027201 Issue Tracking, Third Party Advisory Changed Reference Type https://bugzilla.suse.com/show_bug.cgi?id=1193167#c0 No Types Assigned https://bugzilla.suse.com/show_bug.cgi?id=1193167#c0 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0bdc5afaa74 No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0bdc5afaa74 Mailing List, Patch, Vendor Advisory Changed Reference Type https://lkml.org/lkml/2021/10/4/697 No Types Assigned https://lkml.org/lkml/2021/10/4/697 Mailing List, Patch, Vendor Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.1.15 Added CPE Configuration OR *cpe:2.3:o:suse:linux_enterprise:15.0:sp3:*:*:*:*:*:* *cpe:2.3:o:suse:linux_enterprise:15.0:sp4:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-4028 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-4028
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile