7.1
HIGH
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. 21, 2024, 6:22 a.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.

ID Vendor Product Action
1 Netapp h410c_firmware
2 Netapp h300s_firmware
3 Netapp h500s_firmware
4 Netapp h700s_firmware
5 Netapp h410s_firmware
6 Netapp h300s
7 Netapp h410s
8 Netapp h500s
9 Netapp h700s
10 Netapp h410c
11 Netapp h300e_firmware
12 Netapp h500e_firmware
13 Netapp h700e_firmware
14 Netapp h300e
15 Netapp h500e
16 Netapp h700e
1 Linux linux_kernel
1 Fedoraproject fedora
: Total Affected Vendor : 3 | Products : 18
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
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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1997958
    Added Reference https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091
    Added Reference https://github.com/torvalds/linux/commit/e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091
    Added Reference https://security.netapp.com/advisory/ntap-20220407-0006/
    Added Reference https://ubuntu.com/security/CVE-2021-3739
    Added Reference https://www.openwall.com/lists/oss-security/2021/08/25/3
  • 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_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:-:*:*:*:*:*:*:*
  • 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:-:*:*:*:*:*:*:*
  • 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
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
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

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: