5.5
MEDIUM
CVE-2021-47426
Linux Kernel BPF S390 Memory Leak Vulnerability
Description

In the Linux kernel, the following vulnerability has been resolved: bpf, s390: Fix potential memory leak about jit_data Make sure to free jit_data through kfree() in the error path.

INFO

Published Date :

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

Last Modified :

Dec. 31, 2024, 8:03 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-2021-47426 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

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-2021-47426 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-47426 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. 31, 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) 5.4 up to (excluding) 5.4.153 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.73 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.14.12 *cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*
    Changed Reference Type https://git.kernel.org/stable/c/29fdb11ca88d3c490a3d56f0dc77eb9444d086be No Types Assigned https://git.kernel.org/stable/c/29fdb11ca88d3c490a3d56f0dc77eb9444d086be Patch
    Changed Reference Type https://git.kernel.org/stable/c/29fdb11ca88d3c490a3d56f0dc77eb9444d086be No Types Assigned https://git.kernel.org/stable/c/29fdb11ca88d3c490a3d56f0dc77eb9444d086be Patch
    Changed Reference Type https://git.kernel.org/stable/c/686cb8b9f6b46787f035afe8fbd132a74e6b1bdd No Types Assigned https://git.kernel.org/stable/c/686cb8b9f6b46787f035afe8fbd132a74e6b1bdd Patch
    Changed Reference Type https://git.kernel.org/stable/c/686cb8b9f6b46787f035afe8fbd132a74e6b1bdd No Types Assigned https://git.kernel.org/stable/c/686cb8b9f6b46787f035afe8fbd132a74e6b1bdd Patch
    Changed Reference Type https://git.kernel.org/stable/c/a326f9c01cfbee4450ae49ce618ae6cbc0f76842 No Types Assigned https://git.kernel.org/stable/c/a326f9c01cfbee4450ae49ce618ae6cbc0f76842 Patch
    Changed Reference Type https://git.kernel.org/stable/c/a326f9c01cfbee4450ae49ce618ae6cbc0f76842 No Types Assigned https://git.kernel.org/stable/c/a326f9c01cfbee4450ae49ce618ae6cbc0f76842 Patch
    Changed Reference Type https://git.kernel.org/stable/c/d590a410e472417a22336c7c37685bfb38e801f2 No Types Assigned https://git.kernel.org/stable/c/d590a410e472417a22336c7c37685bfb38e801f2 Patch
    Changed Reference Type https://git.kernel.org/stable/c/d590a410e472417a22336c7c37685bfb38e801f2 No Types Assigned https://git.kernel.org/stable/c/d590a410e472417a22336c7c37685bfb38e801f2 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/29fdb11ca88d3c490a3d56f0dc77eb9444d086be
    Added Reference https://git.kernel.org/stable/c/686cb8b9f6b46787f035afe8fbd132a74e6b1bdd
    Added Reference https://git.kernel.org/stable/c/a326f9c01cfbee4450ae49ce618ae6cbc0f76842
    Added Reference https://git.kernel.org/stable/c/d590a410e472417a22336c7c37685bfb38e801f2
  • 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: bpf, s390: Fix potential memory leak about jit_data Make sure to free jit_data through kfree() in the error path.
    Added Reference kernel.org https://git.kernel.org/stable/c/a326f9c01cfbee4450ae49ce618ae6cbc0f76842 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/29fdb11ca88d3c490a3d56f0dc77eb9444d086be [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/d590a410e472417a22336c7c37685bfb38e801f2 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/686cb8b9f6b46787f035afe8fbd132a74e6b1bdd [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-2021-47426 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-2021-47426 weaknesses.

CVSS31 - Vulnerability Scoring System
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