CVE-2021-47336
Linux SmackFS Bytes Count Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: smackfs: restrict bytes count in smk_set_cipso() Oops, I failed to update subject line. From 07571157c91b98ce1a4aa70967531e64b78e8346 Mon Sep 17 00:00:00 2001 Date: Mon, 12 Apr 2021 22:25:06 +0900 Subject: [PATCH] smackfs: restrict bytes count in smk_set_cipso() Commit 7ef4c19d245f3dc2 ("smackfs: restrict bytes count in smackfs write functions") missed that count > SMK_CIPSOMAX check applies to only format == SMK_FIXED24_FMT case.
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
May 12, 2025, 7:58 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
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-2021-47336.
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-2021-47336 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47336 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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Initial Analysis by [email protected]
May. 12, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE NVD-CWE-noinfo Added CPE Configuration OR *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) 5.4.133 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.51 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.18 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.13 up to (excluding) 5.13.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.9.276 Added Reference Type CVE: https://git.kernel.org/stable/c/135122f174c357b7a3e58f40fa5792156c5e93e6 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/135122f174c357b7a3e58f40fa5792156c5e93e6 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/258fd821f69378453c071b9dd767b298810fc766 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/258fd821f69378453c071b9dd767b298810fc766 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/3780348c1a0e14ffefcaf1fc521f815bcaac94b0 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/3780348c1a0e14ffefcaf1fc521f815bcaac94b0 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/49ec114a6e62d8d320037ce71c1aaf9650b3cafd Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/49ec114a6e62d8d320037ce71c1aaf9650b3cafd Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/5c2dca9a7a7ff6a2df34158903515e2e4fd3d2b2 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/5c2dca9a7a7ff6a2df34158903515e2e4fd3d2b2 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/5f9880403e6b71d56924748ba331daf836243fca Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/5f9880403e6b71d56924748ba331daf836243fca Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/8f5c773a2871cf446e3f36b2834fb25bbb28512b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8f5c773a2871cf446e3f36b2834fb25bbb28512b Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/cbd87ba6a13891acf6180783f8234a8b7a3e3d4d Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/cbd87ba6a13891acf6180783f8234a8b7a3e3d4d Types: 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/135122f174c357b7a3e58f40fa5792156c5e93e6 Added Reference https://git.kernel.org/stable/c/258fd821f69378453c071b9dd767b298810fc766 Added Reference https://git.kernel.org/stable/c/3780348c1a0e14ffefcaf1fc521f815bcaac94b0 Added Reference https://git.kernel.org/stable/c/49ec114a6e62d8d320037ce71c1aaf9650b3cafd Added Reference https://git.kernel.org/stable/c/5c2dca9a7a7ff6a2df34158903515e2e4fd3d2b2 Added Reference https://git.kernel.org/stable/c/5f9880403e6b71d56924748ba331daf836243fca Added Reference https://git.kernel.org/stable/c/8f5c773a2871cf446e3f36b2834fb25bbb28512b Added Reference https://git.kernel.org/stable/c/cbd87ba6a13891acf6180783f8234a8b7a3e3d4d -
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: smackfs: restrict bytes count in smk_set_cipso() Oops, I failed to update subject line. From 07571157c91b98ce1a4aa70967531e64b78e8346 Mon Sep 17 00:00:00 2001 Date: Mon, 12 Apr 2021 22:25:06 +0900 Subject: [PATCH] smackfs: restrict bytes count in smk_set_cipso() Commit 7ef4c19d245f3dc2 ("smackfs: restrict bytes count in smackfs write functions") missed that count > SMK_CIPSOMAX check applies to only format == SMK_FIXED24_FMT case. Added Reference kernel.org https://git.kernel.org/stable/c/5f9880403e6b71d56924748ba331daf836243fca [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/5c2dca9a7a7ff6a2df34158903515e2e4fd3d2b2 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/cbd87ba6a13891acf6180783f8234a8b7a3e3d4d [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/135122f174c357b7a3e58f40fa5792156c5e93e6 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/3780348c1a0e14ffefcaf1fc521f815bcaac94b0 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8f5c773a2871cf446e3f36b2834fb25bbb28512b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/258fd821f69378453c071b9dd767b298810fc766 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/49ec114a6e62d8d320037ce71c1aaf9650b3cafd [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-2021-47336 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-2021-47336
weaknesses.