5.5
MEDIUM CVSS 3.1
CVE-2021-47074
Apache Linux Kernel Memory Leak
Description

In the Linux kernel, the following vulnerability has been resolved: nvme-loop: fix memory leak in nvme_loop_create_ctrl() When creating loop ctrl in nvme_loop_create_ctrl(), if nvme_init_ctrl() fails, the loop ctrl should be freed before jumping to the "out" label.

INFO

Published Date :

March 1, 2024, 10:15 p.m.

Last Modified :

Dec. 12, 2024, 2:43 p.m.

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2021-47074 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 MEDIUM [email protected]
Solution
This addresses a memory leak in the Linux kernel related to NVMe loop creation.
  • Update the affected kernel packages.
  • Reboot the system after the 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-2021-47074 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-2021-47074 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-2021-47074 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-47074 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.

  • Initial Analysis by [email protected]

    Dec. 12, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CWE NIST CWE-401
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.8 up to (excluding) 5.10.40 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.7 *cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*
    Changed Reference Type https://git.kernel.org/stable/c/03504e3b54cc8118cc26c064e60a0b00c2308708 No Types Assigned https://git.kernel.org/stable/c/03504e3b54cc8118cc26c064e60a0b00c2308708 Patch
    Changed Reference Type https://git.kernel.org/stable/c/03504e3b54cc8118cc26c064e60a0b00c2308708 No Types Assigned https://git.kernel.org/stable/c/03504e3b54cc8118cc26c064e60a0b00c2308708 Patch
    Changed Reference Type https://git.kernel.org/stable/c/551ba08d4b7eb26f75758cdb9f15105b276517ad No Types Assigned https://git.kernel.org/stable/c/551ba08d4b7eb26f75758cdb9f15105b276517ad Patch
    Changed Reference Type https://git.kernel.org/stable/c/551ba08d4b7eb26f75758cdb9f15105b276517ad No Types Assigned https://git.kernel.org/stable/c/551ba08d4b7eb26f75758cdb9f15105b276517ad Patch
    Changed Reference Type https://git.kernel.org/stable/c/9c980795ccd77e8abec33dd6fe28dfe1c4083e65 No Types Assigned https://git.kernel.org/stable/c/9c980795ccd77e8abec33dd6fe28dfe1c4083e65 Patch
    Changed Reference Type https://git.kernel.org/stable/c/9c980795ccd77e8abec33dd6fe28dfe1c4083e65 No Types Assigned https://git.kernel.org/stable/c/9c980795ccd77e8abec33dd6fe28dfe1c4083e65 Patch
  • 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/03504e3b54cc8118cc26c064e60a0b00c2308708
    Added Reference https://git.kernel.org/stable/c/551ba08d4b7eb26f75758cdb9f15105b276517ad
    Added Reference https://git.kernel.org/stable/c/9c980795ccd77e8abec33dd6fe28dfe1c4083e65
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 28, 2024

    Action Type Old Value New Value
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Mar. 01, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: nvme-loop: fix memory leak in nvme_loop_create_ctrl() When creating loop ctrl in nvme_loop_create_ctrl(), if nvme_init_ctrl() fails, the loop ctrl should be freed before jumping to the "out" label.
    Added Reference Linux https://git.kernel.org/stable/c/9c980795ccd77e8abec33dd6fe28dfe1c4083e65 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/551ba08d4b7eb26f75758cdb9f15105b276517ad [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/03504e3b54cc8118cc26c064e60a0b00c2308708 [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: 5.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact