CVE-2020-25220
Linux Kernel cgroups Use-After-Free Vulnerability
Description
The Linux kernel 4.9.x before 4.9.233, 4.14.x before 4.14.194, and 4.19.x before 4.19.140 has a use-after-free because skcd->no_refcnt was not considered during a backport of a CVE-2020-14356 patch. This is related to the cgroups feature.
INFO
Published Date :
Sept. 10, 2020, 2:15 a.m.
Last Modified :
Jan. 20, 2021, 2:25 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2020-25220 has a 4 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-2020-25220.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1868453 | Issue Tracking Patch Third Party Advisory |
| https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.194 | Release Notes Vendor Advisory |
| https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.140 | Release Notes Vendor Advisory |
| https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.233 | Release Notes Vendor Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-4.14.y&id=82fd2138a5ffd7e0d4320cdb669e115ee976a26e | Issue Tracking Patch Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html | Mailing List Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20201001-0004/ | Third Party Advisory |
| https://www.spinics.net/lists/stable/msg405099.html | Mailing List Patch 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).
None
2020年发布到阿尔法实验室微信公众号的所有安全资讯汇总
CVE Data Analysis, CVE Monitor, CVE EXP Prediction Based on Deep Learning. 1999-2020年存量CVE数据分析、监控CVE增量更新、基于深度学习的CVE EXP预测和自动化推送
Python
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-2020-25220 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-25220 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]
Jan. 20, 2021
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html Mailing List, Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20201001-0004/ No Types Assigned https://security.netapp.com/advisory/ntap-20201001-0004/ Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.9.0 up to (excluding) 4.9.233 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.14.0 up to (excluding) 4.14.194 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.19.0 up to (excluding) 4.19.140 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.9.0 up to (excluding) 4.9.233 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.14 up to (excluding) 4.14.194 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.19 up to (excluding) 4.19.140 -
CVE Modified by [email protected]
Nov. 02, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html [No Types Assigned] Added Reference https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html [No Types Assigned] -
CVE Modified by [email protected]
Oct. 01, 2020
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20201001-0004/ [No Types Assigned] -
Initial Analysis by [email protected]
Sep. 14, 2020
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=1868453 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1868453 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.194 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.194 Release Notes, Vendor Advisory Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.140 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.140 Release Notes, Vendor Advisory Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.233 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.233 Release Notes, Vendor Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-4.14.y&id=82fd2138a5ffd7e0d4320cdb669e115ee976a26e No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-4.14.y&id=82fd2138a5ffd7e0d4320cdb669e115ee976a26e Issue Tracking, Patch, Vendor Advisory Changed Reference Type https://www.spinics.net/lists/stable/msg405099.html No Types Assigned https://www.spinics.net/lists/stable/msg405099.html Mailing List, Patch, Third Party Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.9.0 up to (excluding) 4.9.233 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.14.0 up to (excluding) 4.14.194 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.19.0 up to (excluding) 4.19.140
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-25220 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-2020-25220
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
0.12065
percentile