CVE-2021-47403
Linux Kernel Carrier TTY Reference Leak
Description
In the Linux kernel, the following vulnerability has been resolved: ipack: ipoctal: fix module reference leak A reference to the carrier module was taken on every open but was only released once when the final reference to the tty struct was dropped. Fix this by taking the module reference and initialising the tty driver data when installing the tty.
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
July 3, 2024, 1:37 a.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.2
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
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information, practical solutions, and valuable tools related to
CVE-2021-47403
.
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).
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The following list is the news that have been mention
CVE-2021-47403
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47403
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.
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CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 03, 2024
Action Type Old Value New Value Added CWE CISA-ADP CWE-200 Added CVSS V3.1 CISA-ADP AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H -
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: ipack: ipoctal: fix module reference leak A reference to the carrier module was taken on every open but was only released once when the final reference to the tty struct was dropped. Fix this by taking the module reference and initialising the tty driver data when installing the tty. Added Reference kernel.org https://git.kernel.org/stable/c/31398849b84ebae0d43a1cf379cb9895597f221a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c0adb5a947dec6cff7050ec56d78ecd3916f9ce6 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/dde4c1429b97383689f755ce92b4ed1e84a9c92b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/9c5b77a7ffc983b2429ce158b50497c5d3c86a69 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/3253c87e1e5bc0107aab773af2f135ebccf38666 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/7cea848678470daadbfdaa6a112b823c290f900c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/811178f296b16af30264def74c8d2179a72d5562 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/bb8a4fcb2136508224c596a7e665bdba1d7c3c27 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47403
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-2021-47403
weaknesses.