5.5
MEDIUM
CVE-2021-47319
Virtio-Blk Memory Leak
Description

In the Linux kernel, the following vulnerability has been resolved: virtio-blk: Fix memory leak among suspend/resume procedure The vblk->vqs should be freed before we call init_vqs() in virtblk_restore().

INFO

Published Date :

May 21, 2024, 3:15 p.m.

Last Modified :

Dec. 24, 2024, 4:28 p.m.

Source :

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

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2021-47319 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
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-2021-47319.

URL Resource
https://git.kernel.org/stable/c/04c6e60b884cb5e94ff32af46867fb41d5848358 Patch
https://git.kernel.org/stable/c/102d6bc6475ab09bab579c18704e6cf8d898e93c Patch
https://git.kernel.org/stable/c/29a2f4a3214aa14d61cc9737c9f886dae9dbb710 Patch
https://git.kernel.org/stable/c/381bde79d11e596002edfd914e6714291826967a Patch
https://git.kernel.org/stable/c/600942d2fd49b90e44857d20c774b20d16f3130f Patch
https://git.kernel.org/stable/c/863da837964c80c72e368a4f748c30d25daa1815 Patch
https://git.kernel.org/stable/c/b71ba22e7c6c6b279c66f53ee7818709774efa1f Patch
https://git.kernel.org/stable/c/ca2b8ae93a6da9839dc7f9eb9199b18aa03c3dae Patch
https://git.kernel.org/stable/c/cd24da0db9f75ca11eaf6060f0ccb90e2f3be3b0 Patch
https://git.kernel.org/stable/c/04c6e60b884cb5e94ff32af46867fb41d5848358 Patch
https://git.kernel.org/stable/c/102d6bc6475ab09bab579c18704e6cf8d898e93c Patch
https://git.kernel.org/stable/c/29a2f4a3214aa14d61cc9737c9f886dae9dbb710 Patch
https://git.kernel.org/stable/c/381bde79d11e596002edfd914e6714291826967a Patch
https://git.kernel.org/stable/c/600942d2fd49b90e44857d20c774b20d16f3130f Patch
https://git.kernel.org/stable/c/863da837964c80c72e368a4f748c30d25daa1815 Patch
https://git.kernel.org/stable/c/b71ba22e7c6c6b279c66f53ee7818709774efa1f Patch
https://git.kernel.org/stable/c/ca2b8ae93a6da9839dc7f9eb9199b18aa03c3dae Patch
https://git.kernel.org/stable/c/cd24da0db9f75ca11eaf6060f0ccb90e2f3be3b0 Patch

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-2021-47319 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-47319 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. 24, 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 up to (excluding) 4.4.276 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.276 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.240 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.198 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.134 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.52 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.13 up to (excluding) 5.13.4
    Changed Reference Type https://git.kernel.org/stable/c/04c6e60b884cb5e94ff32af46867fb41d5848358 No Types Assigned https://git.kernel.org/stable/c/04c6e60b884cb5e94ff32af46867fb41d5848358 Patch
    Changed Reference Type https://git.kernel.org/stable/c/04c6e60b884cb5e94ff32af46867fb41d5848358 No Types Assigned https://git.kernel.org/stable/c/04c6e60b884cb5e94ff32af46867fb41d5848358 Patch
    Changed Reference Type https://git.kernel.org/stable/c/102d6bc6475ab09bab579c18704e6cf8d898e93c No Types Assigned https://git.kernel.org/stable/c/102d6bc6475ab09bab579c18704e6cf8d898e93c Patch
    Changed Reference Type https://git.kernel.org/stable/c/102d6bc6475ab09bab579c18704e6cf8d898e93c No Types Assigned https://git.kernel.org/stable/c/102d6bc6475ab09bab579c18704e6cf8d898e93c Patch
    Changed Reference Type https://git.kernel.org/stable/c/29a2f4a3214aa14d61cc9737c9f886dae9dbb710 No Types Assigned https://git.kernel.org/stable/c/29a2f4a3214aa14d61cc9737c9f886dae9dbb710 Patch
    Changed Reference Type https://git.kernel.org/stable/c/29a2f4a3214aa14d61cc9737c9f886dae9dbb710 No Types Assigned https://git.kernel.org/stable/c/29a2f4a3214aa14d61cc9737c9f886dae9dbb710 Patch
    Changed Reference Type https://git.kernel.org/stable/c/381bde79d11e596002edfd914e6714291826967a No Types Assigned https://git.kernel.org/stable/c/381bde79d11e596002edfd914e6714291826967a Patch
    Changed Reference Type https://git.kernel.org/stable/c/381bde79d11e596002edfd914e6714291826967a No Types Assigned https://git.kernel.org/stable/c/381bde79d11e596002edfd914e6714291826967a Patch
    Changed Reference Type https://git.kernel.org/stable/c/600942d2fd49b90e44857d20c774b20d16f3130f No Types Assigned https://git.kernel.org/stable/c/600942d2fd49b90e44857d20c774b20d16f3130f Patch
    Changed Reference Type https://git.kernel.org/stable/c/600942d2fd49b90e44857d20c774b20d16f3130f No Types Assigned https://git.kernel.org/stable/c/600942d2fd49b90e44857d20c774b20d16f3130f Patch
    Changed Reference Type https://git.kernel.org/stable/c/863da837964c80c72e368a4f748c30d25daa1815 No Types Assigned https://git.kernel.org/stable/c/863da837964c80c72e368a4f748c30d25daa1815 Patch
    Changed Reference Type https://git.kernel.org/stable/c/863da837964c80c72e368a4f748c30d25daa1815 No Types Assigned https://git.kernel.org/stable/c/863da837964c80c72e368a4f748c30d25daa1815 Patch
    Changed Reference Type https://git.kernel.org/stable/c/b71ba22e7c6c6b279c66f53ee7818709774efa1f No Types Assigned https://git.kernel.org/stable/c/b71ba22e7c6c6b279c66f53ee7818709774efa1f Patch
    Changed Reference Type https://git.kernel.org/stable/c/b71ba22e7c6c6b279c66f53ee7818709774efa1f No Types Assigned https://git.kernel.org/stable/c/b71ba22e7c6c6b279c66f53ee7818709774efa1f Patch
    Changed Reference Type https://git.kernel.org/stable/c/ca2b8ae93a6da9839dc7f9eb9199b18aa03c3dae No Types Assigned https://git.kernel.org/stable/c/ca2b8ae93a6da9839dc7f9eb9199b18aa03c3dae Patch
    Changed Reference Type https://git.kernel.org/stable/c/ca2b8ae93a6da9839dc7f9eb9199b18aa03c3dae No Types Assigned https://git.kernel.org/stable/c/ca2b8ae93a6da9839dc7f9eb9199b18aa03c3dae Patch
    Changed Reference Type https://git.kernel.org/stable/c/cd24da0db9f75ca11eaf6060f0ccb90e2f3be3b0 No Types Assigned https://git.kernel.org/stable/c/cd24da0db9f75ca11eaf6060f0ccb90e2f3be3b0 Patch
    Changed Reference Type https://git.kernel.org/stable/c/cd24da0db9f75ca11eaf6060f0ccb90e2f3be3b0 No Types Assigned https://git.kernel.org/stable/c/cd24da0db9f75ca11eaf6060f0ccb90e2f3be3b0 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/04c6e60b884cb5e94ff32af46867fb41d5848358
    Added Reference https://git.kernel.org/stable/c/102d6bc6475ab09bab579c18704e6cf8d898e93c
    Added Reference https://git.kernel.org/stable/c/29a2f4a3214aa14d61cc9737c9f886dae9dbb710
    Added Reference https://git.kernel.org/stable/c/381bde79d11e596002edfd914e6714291826967a
    Added Reference https://git.kernel.org/stable/c/600942d2fd49b90e44857d20c774b20d16f3130f
    Added Reference https://git.kernel.org/stable/c/863da837964c80c72e368a4f748c30d25daa1815
    Added Reference https://git.kernel.org/stable/c/b71ba22e7c6c6b279c66f53ee7818709774efa1f
    Added Reference https://git.kernel.org/stable/c/ca2b8ae93a6da9839dc7f9eb9199b18aa03c3dae
    Added Reference https://git.kernel.org/stable/c/cd24da0db9f75ca11eaf6060f0ccb90e2f3be3b0
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 28, 2024

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

    May. 21, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: virtio-blk: Fix memory leak among suspend/resume procedure The vblk->vqs should be freed before we call init_vqs() in virtblk_restore().
    Added Reference kernel.org https://git.kernel.org/stable/c/381bde79d11e596002edfd914e6714291826967a [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/102d6bc6475ab09bab579c18704e6cf8d898e93c [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/863da837964c80c72e368a4f748c30d25daa1815 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/600942d2fd49b90e44857d20c774b20d16f3130f [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/04c6e60b884cb5e94ff32af46867fb41d5848358 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/cd24da0db9f75ca11eaf6060f0ccb90e2f3be3b0 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/ca2b8ae93a6da9839dc7f9eb9199b18aa03c3dae [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/29a2f4a3214aa14d61cc9737c9f886dae9dbb710 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/b71ba22e7c6c6b279c66f53ee7818709774efa1f [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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-47319 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-2021-47319 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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Latest DB Update: May. 15, 2025 9:30