CVE-2024-39494
HighIn the Linux kernel, the following vulnerability has been resolved: ima: Fix use-after-free on a dentry's dname.name ->d_name.name can change on rename and the earlier value can be freed; there are conditions sufficient to stabilize it (->d_lock on dentry, ->d_lock on its parent, ->i_rwsem exclusive on the parent's inode, rename_lock), but none of those are met at any of the sites. Take a stable snapshot of the name instead.
CVSS 3.1 score
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type
CWE-416CVE-2024-39494 is a Use After Free vulnerability
What is Use After Free?
The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE
References
The following references provide additional information about CVE-2024-39494 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Mailing List Third Party Advisory
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Mailing List Third Party Advisory
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PatchKernel patch commithttps://git.kernel.org/stable/c/0b31e28fbd773aefb6164687e0767319b8199829
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PatchKernel patch commithttps://git.kernel.org/stable/c/480afcbeb7aaaa22677d3dd48ec590b441eaac1a
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PatchKernel patch commithttps://git.kernel.org/stable/c/7fb374981e31c193b1152ed8d3b0a95b671330d4
Frequently asked questions
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What is CVE-2024-39494?
CVE-2024-39494 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Use After Free flaw (CWE-416) . CVE-2024-39494 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-2024-39494?
CVE-2024-39494 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2024-39494?
No patch is currently available for CVE-2024-39494. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2024-39494 actively exploited?
No — CVE-2024-39494 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
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What is Use After Free (CWE-416)?
The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. View CWE-416 on MITRE CWE →