CVE-2021-3715
"Linux Kernel Traffic Control Routing Decision Classifier Use-After-Free Local Privilege Escalation Vulnerability"
Description
A flaw was found in the "Routing decision" classifier in the Linux kernel's Traffic Control networking subsystem in the way it handled changing of classification filters, leading to a use-after-free condition. This flaw allows unprivileged local users to escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
INFO
Published Date :
March 2, 2022, 11:15 p.m.
Last Modified :
Jan. 24, 2023, 3:07 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2021-3715 has a 8 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-2021-3715.
| URL | Resource |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef299cc3fa1a9e1288665a9fdc8bff55629fd359 | Mailing List Patch Vendor 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).
None
Makefile C
None
Map Vulnerabilities into Different Layers of the Container Image
Python
exploit for CVE-2022-2588
Makefile C
None
Makefile Python CMake C++ Shell Go HTML JavaScript CSS Roff
Linux kernel exploit
Makefile C
Linux kernel CVE exploit analysis report and relative debug environment. You don't need to compile Linux kernel and configure your environment anymore.
C Shell Makefile Meson
A collection of links related to Linux kernel security and exploitation
linux-kernel kernel-exploitation exploit privilege-escalation security
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-3715 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3715 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 -
Reanalysis by [email protected]
Jan. 24, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.10 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.18 up to (excluding) 4.4.218 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.218 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.175 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.114 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.29 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5.0 up to (excluding) 5.5.14 -
Modified Analysis by [email protected]
Sep. 30, 2022
Action Type Old Value New Value -
CVE Modified by [email protected]
Sep. 23, 2022
Action Type Old Value New Value Removed Reference https://bugzilla.redhat.com/show_bug.cgi?id=1993988 [Issue Tracking, Patch, Third Party Advisory] Removed Reference https://github.com/torvalds/linux/commit/ef299cc3fa1a9e1288665a9fdc8bff55629fd359 [Patch, Vendor Advisory] Removed Reference https://www.openwall.com/lists/oss-security/2021/09/07/1 [Mailing List, Patch, Third Party Advisory] -
Initial Analysis by [email protected]
Mar. 10, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C) 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://bugzilla.redhat.com/show_bug.cgi?id=1993988 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1993988 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef299cc3fa1a9e1288665a9fdc8bff55629fd359 No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ef299cc3fa1a9e1288665a9fdc8bff55629fd359 Mailing List, Patch, Vendor Advisory Changed Reference Type https://github.com/torvalds/linux/commit/ef299cc3fa1a9e1288665a9fdc8bff55629fd359 No Types Assigned https://github.com/torvalds/linux/commit/ef299cc3fa1a9e1288665a9fdc8bff55629fd359 Patch, Vendor Advisory Changed Reference Type https://www.openwall.com/lists/oss-security/2021/09/07/1 No Types Assigned https://www.openwall.com/lists/oss-security/2021/09/07/1 Mailing List, Patch, Third Party Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.10
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3715 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-2021-3715
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