CVE-2021-47152
"MPTCP Linux Kernel Data Stream Corruption"
Description
In the Linux kernel, the following vulnerability has been resolved: mptcp: fix data stream corruption Maxim reported several issues when forcing a TCP transparent proxy to use the MPTCP protocol for the inbound connections. He also provided a clean reproducer. The problem boils down to 'mptcp_frag_can_collapse_to()' assuming that only MPTCP will use the given page_frag. If others - e.g. the plain TCP protocol - allocate page fragments, we can end-up re-using already allocated memory for mptcp_data_frag. Fix the issue ensuring that the to-be-expanded data fragment is located at the current page frag end. v1 -> v2: - added missing fixes tag (Mat)
INFO
Published Date :
March 25, 2024, 9:15 a.m.
Last Modified :
March 13, 2025, 9:24 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- There is no known solution at this time.
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-2021-47152.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47152 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-2021-47152
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-2021-47152 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47152 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]
Mar. 13, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-787 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 from (excluding) 5.12.9 *cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.7 from (excluding) 5.10.42 Added Reference Type CVE: https://git.kernel.org/stable/c/18e7f0580da15cac1e79d73683ada5a9e70980f8 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/18e7f0580da15cac1e79d73683ada5a9e70980f8 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/29249eac5225429b898f278230a6ca2baa1ae154 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/29249eac5225429b898f278230a6ca2baa1ae154 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/3267a061096efc91eda52c2a0c61ba76e46e4b34 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/3267a061096efc91eda52c2a0c61ba76e46e4b34 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/18e7f0580da15cac1e79d73683ada5a9e70980f8 Added Reference https://git.kernel.org/stable/c/29249eac5225429b898f278230a6ca2baa1ae154 Added Reference https://git.kernel.org/stable/c/3267a061096efc91eda52c2a0c61ba76e46e4b34 -
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. 25, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: mptcp: fix data stream corruption Maxim reported several issues when forcing a TCP transparent proxy to use the MPTCP protocol for the inbound connections. He also provided a clean reproducer. The problem boils down to 'mptcp_frag_can_collapse_to()' assuming that only MPTCP will use the given page_frag. If others - e.g. the plain TCP protocol - allocate page fragments, we can end-up re-using already allocated memory for mptcp_data_frag. Fix the issue ensuring that the to-be-expanded data fragment is located at the current page frag end. v1 -> v2: - added missing fixes tag (Mat) Added Reference kernel.org https://git.kernel.org/stable/c/3267a061096efc91eda52c2a0c61ba76e46e4b34 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/18e7f0580da15cac1e79d73683ada5a9e70980f8 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/29249eac5225429b898f278230a6ca2baa1ae154 [No types assigned]