7.8
HIGH CVSS 3.1
CVE-2021-47600
dm btree remove: fix use after free in rebalance_children()
Description

In the Linux kernel, the following vulnerability has been resolved: dm btree remove: fix use after free in rebalance_children() Move dm_tm_unlock() after dm_tm_dec().

INFO

Published Date :

June 19, 2024, 3:15 p.m.

Last Modified :

Nov. 21, 2024, 6:36 a.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2021-47600 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 Linux linux_kernel
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
Solution
This vulnerability is addressed by updating the Linux kernel to a version containing the fix.
  • Update the Linux kernel to a patched version.
  • Reboot the system after the kernel update.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-47600 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-2021-47600 weaknesses.

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-2021-47600 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-47600 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://git.kernel.org/stable/c/0e21e6cd5eebfc929ac5fa3b97ca2d4ace3cb6a3
    Added Reference https://git.kernel.org/stable/c/1b8d2789dad0005fd5e7d35dab26a8e1203fb6da
    Added Reference https://git.kernel.org/stable/c/293f957be5e39720778fb1851ced7f5fba6d51c3
    Added Reference https://git.kernel.org/stable/c/501ecd90efdc9b2edc6c28852ecd098a4adf8f00
    Added Reference https://git.kernel.org/stable/c/607beb420b3fe23b948a9bf447d993521a02fbbb
    Added Reference https://git.kernel.org/stable/c/66ea642af6fd4eacb5d0271a922130fcf8700424
    Added Reference https://git.kernel.org/stable/c/a48f6a2bf33734ec5669ee03067dfb6c5b4818d6
    Added Reference https://git.kernel.org/stable/c/b03abd0aa09c05099f537cb05b8460c4298f0861
  • Initial Analysis by [email protected]

    Aug. 27, 2024

    Action Type Old Value New Value
    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://git.kernel.org/stable/c/0e21e6cd5eebfc929ac5fa3b97ca2d4ace3cb6a3 No Types Assigned https://git.kernel.org/stable/c/0e21e6cd5eebfc929ac5fa3b97ca2d4ace3cb6a3 Patch
    Changed Reference Type https://git.kernel.org/stable/c/1b8d2789dad0005fd5e7d35dab26a8e1203fb6da No Types Assigned https://git.kernel.org/stable/c/1b8d2789dad0005fd5e7d35dab26a8e1203fb6da Patch
    Changed Reference Type https://git.kernel.org/stable/c/293f957be5e39720778fb1851ced7f5fba6d51c3 No Types Assigned https://git.kernel.org/stable/c/293f957be5e39720778fb1851ced7f5fba6d51c3 Patch
    Changed Reference Type https://git.kernel.org/stable/c/501ecd90efdc9b2edc6c28852ecd098a4adf8f00 No Types Assigned https://git.kernel.org/stable/c/501ecd90efdc9b2edc6c28852ecd098a4adf8f00 Patch
    Changed Reference Type https://git.kernel.org/stable/c/607beb420b3fe23b948a9bf447d993521a02fbbb No Types Assigned https://git.kernel.org/stable/c/607beb420b3fe23b948a9bf447d993521a02fbbb Patch
    Changed Reference Type https://git.kernel.org/stable/c/66ea642af6fd4eacb5d0271a922130fcf8700424 No Types Assigned https://git.kernel.org/stable/c/66ea642af6fd4eacb5d0271a922130fcf8700424 Patch
    Changed Reference Type https://git.kernel.org/stable/c/a48f6a2bf33734ec5669ee03067dfb6c5b4818d6 No Types Assigned https://git.kernel.org/stable/c/a48f6a2bf33734ec5669ee03067dfb6c5b4818d6 Patch
    Changed Reference Type https://git.kernel.org/stable/c/b03abd0aa09c05099f537cb05b8460c4298f0861 No Types Assigned https://git.kernel.org/stable/c/b03abd0aa09c05099f537cb05b8460c4298f0861 Patch
    Added CWE NIST CWE-416
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.4.296 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.294 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.259 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.222 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.168 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.88 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.11
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 19, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: dm btree remove: fix use after free in rebalance_children() Move dm_tm_unlock() after dm_tm_dec().
    Added Reference kernel.org https://git.kernel.org/stable/c/a48f6a2bf33734ec5669ee03067dfb6c5b4818d6 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/66ea642af6fd4eacb5d0271a922130fcf8700424 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/b03abd0aa09c05099f537cb05b8460c4298f0861 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/293f957be5e39720778fb1851ced7f5fba6d51c3 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/501ecd90efdc9b2edc6c28852ecd098a4adf8f00 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/0e21e6cd5eebfc929ac5fa3b97ca2d4ace3cb6a3 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/607beb420b3fe23b948a9bf447d993521a02fbbb [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/1b8d2789dad0005fd5e7d35dab26a8e1203fb6da [No types assigned]
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.
Vulnerability Scoring Details
Base CVSS Score: 7.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact