CVE-2024-50096
"Nouveau DMA Memory Zero-Page Disclosure"
Description
In the Linux kernel, the following vulnerability has been resolved: nouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error The `nouveau_dmem_copy_one` function ensures that the copy push command is sent to the device firmware but does not track whether it was executed successfully. In the case of a copy error (e.g., firmware or hardware failure), the copy push command will be sent via the firmware channel, and `nouveau_dmem_copy_one` will likely report success, leading to the `migrate_to_ram` function returning a dirty HIGH_USER page to the user. This can result in a security vulnerability, as a HIGH_USER page that may contain sensitive or corrupted data could be returned to the user. To prevent this vulnerability, we allocate a zero page. Thus, in case of an error, a non-dirty (zero) page will be returned to the user.
INFO
Published Date :
Nov. 5, 2024, 5:15 p.m.
Last Modified :
Nov. 12, 2024, 4:16 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
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-2024-50096.
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-2024-50096 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-50096 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]
Nov. 12, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://git.kernel.org/stable/c/614bfb2050982d23d53d0d51c4079dba0437c883 No Types Assigned https://git.kernel.org/stable/c/614bfb2050982d23d53d0d51c4079dba0437c883 Patch Changed Reference Type https://git.kernel.org/stable/c/697e3ddcf1f8b68bd531fc34eead27c000bdf3e1 No Types Assigned https://git.kernel.org/stable/c/697e3ddcf1f8b68bd531fc34eead27c000bdf3e1 Patch Changed Reference Type https://git.kernel.org/stable/c/73f75d2b5aee5a735cf64b8ab4543d5c20dbbdd9 No Types Assigned https://git.kernel.org/stable/c/73f75d2b5aee5a735cf64b8ab4543d5c20dbbdd9 Patch Changed Reference Type https://git.kernel.org/stable/c/835745a377a4519decd1a36d6b926e369b3033e2 No Types Assigned https://git.kernel.org/stable/c/835745a377a4519decd1a36d6b926e369b3033e2 Patch Changed Reference Type https://git.kernel.org/stable/c/8c3de9282dde21ce3c1bf1bde3166a4510547aa9 No Types Assigned https://git.kernel.org/stable/c/8c3de9282dde21ce3c1bf1bde3166a4510547aa9 Patch Changed Reference Type https://git.kernel.org/stable/c/ab4d113b6718b076046018292f821d5aa4b844f8 No Types Assigned https://git.kernel.org/stable/c/ab4d113b6718b076046018292f821d5aa4b844f8 Patch Changed Reference Type https://git.kernel.org/stable/c/fd9bb7e996bab9b9049fffe3f3d3b50dee191d27 No Types Assigned https://git.kernel.org/stable/c/fd9bb7e996bab9b9049fffe3f3d3b50dee191d27 Patch Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.1 up to (excluding) 5.4.285 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.227 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.168 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.113 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.57 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.11.4 *cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 08, 2024
Action Type Old Value New Value Added Reference kernel.org https://git.kernel.org/stable/c/fd9bb7e996bab9b9049fffe3f3d3b50dee191d27 [No types assigned] -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 05, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: nouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error The `nouveau_dmem_copy_one` function ensures that the copy push command is sent to the device firmware but does not track whether it was executed successfully. In the case of a copy error (e.g., firmware or hardware failure), the copy push command will be sent via the firmware channel, and `nouveau_dmem_copy_one` will likely report success, leading to the `migrate_to_ram` function returning a dirty HIGH_USER page to the user. This can result in a security vulnerability, as a HIGH_USER page that may contain sensitive or corrupted data could be returned to the user. To prevent this vulnerability, we allocate a zero page. Thus, in case of an error, a non-dirty (zero) page will be returned to the user. Added Reference kernel.org https://git.kernel.org/stable/c/73f75d2b5aee5a735cf64b8ab4543d5c20dbbdd9 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8c3de9282dde21ce3c1bf1bde3166a4510547aa9 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/614bfb2050982d23d53d0d51c4079dba0437c883 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/697e3ddcf1f8b68bd531fc34eead27c000bdf3e1 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ab4d113b6718b076046018292f821d5aa4b844f8 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/835745a377a4519decd1a36d6b926e369b3033e2 [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-2024-50096 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-2024-50096
weaknesses.