CVE-2020-27825
Linux kernel Use-After-Free Race Condition Denial of Service
Description
A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat.
INFO
Published Date :
Dec. 11, 2020, 7:15 p.m.
Last Modified :
Nov. 7, 2023, 3:21 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.2
Exploitability Score :
0.5
Public PoC/Exploit Available at Github
CVE-2020-27825 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2020-27825
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
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-2020-27825.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1905155 | Issue Tracking Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html | Mailing List Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20210521-0008/ | Third Party Advisory |
| https://www.debian.org/security/2021/dsa-4843 | 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).
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The following list is the news that have been mention
CVE-2020-27825 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-27825 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 -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Removed CWE Red Hat, Inc. CWE-416 -
Modified Analysis by [email protected]
Sep. 02, 2022
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20210521-0008/ No Types Assigned https://security.netapp.com/advisory/ntap-20210521-0008/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Jul. 15, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:* OR *cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 21, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20210521-0008/ [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 26, 2021
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html Mailing List, Third Party Advisory Changed Reference Type https://www.debian.org/security/2021/dsa-4843 No Types Assigned https://www.debian.org/security/2021/dsa-4843 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Mar. 09, 2021
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html [No Types Assigned] -
CVE Modified by [email protected]
Feb. 12, 2021
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html [No Types Assigned] -
CVE Modified by [email protected]
Feb. 02, 2021
Action Type Old Value New Value Added Reference https://www.debian.org/security/2021/dsa-4843 [No Types Assigned] -
CVE Modified by [email protected]
Dec. 14, 2020
Action Type Old Value New Value Changed Description A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running in parallel on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat. A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat. -
Initial Analysis by [email protected]
Dec. 14, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:M/Au:N/C:P/I:N/A:C) Added CVSS V3.1 NIST AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1905155 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1905155 Issue Tracking, Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.10:rc1:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-27825 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-2020-27825
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