CVE-2021-47137
net: lantiq: fix memory corruption in RX ring
Description
In the Linux kernel, the following vulnerability has been resolved: net: lantiq: fix memory corruption in RX ring In a situation where memory allocation or dma mapping fails, an invalid address is programmed into the descriptor. This can lead to memory corruption. If the memory allocation fails, DMA should reuse the previous skb and mapping and drop the packet. This patch also increments rx drop counter.
INFO
Published Date :
March 25, 2024, 9:15 a.m.
Last Modified :
March 19, 2025, 4:27 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 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
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-2021-47137.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47137 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-2021-47137
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-2021-47137 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47137 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]
Mar. 19, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (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) 5.5 up to (excluding) 5.10.42 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.124 Added Reference Type CVE: https://git.kernel.org/stable/c/46dd4abced3cb2c912916f4a5353e0927db0c4a2 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/46dd4abced3cb2c912916f4a5353e0927db0c4a2 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/5ac72351655f8b033a2935646f53b7465c903418 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/5ac72351655f8b033a2935646f53b7465c903418 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/8bb1077448d43a871ed667520763e3b9f9b7975d Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8bb1077448d43a871ed667520763e3b9f9b7975d Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/c7718ee96dbc2f9c5fc3b578abdf296dd44b9c20 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c7718ee96dbc2f9c5fc3b578abdf296dd44b9c20 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/46dd4abced3cb2c912916f4a5353e0927db0c4a2 Added Reference https://git.kernel.org/stable/c/5ac72351655f8b033a2935646f53b7465c903418 Added Reference https://git.kernel.org/stable/c/8bb1077448d43a871ed667520763e3b9f9b7975d Added Reference https://git.kernel.org/stable/c/c7718ee96dbc2f9c5fc3b578abdf296dd44b9c20 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Nov. 05, 2024
Action Type Old Value New Value Added CWE CISA-ADP CWE-770 Added CVSS V3.1 CISA-ADP AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H -
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: net: lantiq: fix memory corruption in RX ring In a situation where memory allocation or dma mapping fails, an invalid address is programmed into the descriptor. This can lead to memory corruption. If the memory allocation fails, DMA should reuse the previous skb and mapping and drop the packet. This patch also increments rx drop counter. Added Reference kernel.org https://git.kernel.org/stable/c/8bb1077448d43a871ed667520763e3b9f9b7975d [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/5ac72351655f8b033a2935646f53b7465c903418 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/46dd4abced3cb2c912916f4a5353e0927db0c4a2 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c7718ee96dbc2f9c5fc3b578abdf296dd44b9c20 [No types assigned]