CVE-2024-50096
MediumIn 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.
CVSS 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected versions
Linux kernel versions
5.1
and later are affected. Fixed in
5.4.285,
5.10.227,
5.15.168,
6.1.113,
6.6.57,
6.11.4,
6.12
and their respective stable series.
References
The following references provide additional information about CVE-2024-50096 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/614bfb2050982d23d53d0d51c4079dba0437c883
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PatchKernel patch commithttps://git.kernel.org/stable/c/697e3ddcf1f8b68bd531fc34eead27c000bdf3e1
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PatchKernel patch commithttps://git.kernel.org/stable/c/73f75d2b5aee5a735cf64b8ab4543d5c20dbbdd9
Frequently asked questions
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What is CVE-2024-50096?
CVE-2024-50096 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.1 onward and has been patched in 5.4.285, 5.10.227, 5.15.168 and others. CVE-2024-50096 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2024-50096?
CVE-2024-50096 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. -
Is there a patch available for CVE-2024-50096?
Yes — CVE-2024-50096 has been patched. Fixed versions include 5.4.285, 5.10.227, 5.15.168 and others. If you are running Linux kernel 5.1 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2024-50096 actively exploited?
No — CVE-2024-50096 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.