CVE-2021-3739
Linux Kernel Btrfs NULL Pointer Dereference Vulnerability
Description
A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires ‘CAP_SYS_ADMIN’. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability is to system availability.
INFO
Published Date :
March 10, 2022, 5:43 p.m.
Last Modified :
Nov. 9, 2023, 2:44 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.2
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2021-3739
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-2021-3739.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1997958 | Issue Tracking Patch Third Party Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091 | Mailing List Patch Vendor Advisory |
| https://github.com/torvalds/linux/commit/e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091 | Exploit Patch Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220407-0006/ | Third Party Advisory |
| https://ubuntu.com/security/CVE-2021-3739 | Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2021/08/25/3 | 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-3739 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3739 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 -
CPE Deprecation Remap by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:netapp:baseboard_management_controller_h410c:-:*:*:*:*:*:*:* OR *cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:netapp:baseboard_management_controller_h300s:-:*:*:*:*:*:*:* OR *cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:netapp:baseboard_management_controller_h500s:-:*:*:*:*:*:*:* OR *cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:netapp:baseboard_management_controller_h700s:-:*:*:*:*:*:*:* OR *cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:netapp:baseboard_management_controller_h300e:-:*:*:*:*:*:*:* OR *cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:netapp:baseboard_management_controller_h700e:-:*:*:*:*:*:*:* OR *cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:netapp:baseboard_management_controller_h410s:-:*:*:*:*:*:*:* OR *cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:h:netapp:baseboard_management_controller_h500e:-:*:*:*:*:*:*:* OR *cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:* -
Modified Analysis by [email protected]
Jun. 01, 2022
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20220407-0006/ No Types Assigned https://security.netapp.com/advisory/ntap-20220407-0006/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_h300s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller_h300s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_h500s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller_h500s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_h700s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller_h700s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_h300e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller_h300e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_h500e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller_h500e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_h700e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller_h700e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_h410s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller_h410s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_h410c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:baseboard_management_controller_h410c:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 08, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20220407-0006/ [No Types Assigned] -
Initial Analysis by [email protected]
Mar. 14, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:N/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1997958 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1997958 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091 No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091 Mailing List, Patch, Vendor Advisory Changed Reference Type https://github.com/torvalds/linux/commit/e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091 No Types Assigned https://github.com/torvalds/linux/commit/e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091 Exploit, Patch, Third Party Advisory Changed Reference Type https://ubuntu.com/security/CVE-2021-3739 No Types Assigned https://ubuntu.com/security/CVE-2021-3739 Third Party Advisory Changed Reference Type https://www.openwall.com/lists/oss-security/2021/08/25/3 No Types Assigned https://www.openwall.com/lists/oss-security/2021/08/25/3 Mailing List, Patch, Third Party Advisory Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.14.20
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3739 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-2021-3739
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