CVE-2024-14027
MediumIn the Linux kernel, the following vulnerability has been resolved: fs/xattr: missing fdput() in fremovexattr error path In the Linux kernel, the fremovexattr() syscall calls fdget() to acquire a file reference but returns early without calling fdput() when strncpy_from_user() fails on the name argument. In multi-threaded processes where fdget() takes the slow path, this permanently leaks one file reference per call, pinning the struct file and associated kernel objects in memory. An unprivileged local user can exploit this to cause kernel memory exhaustion. The issue was inadvertently fixed by commit a71874379ec8 ("xattr: switch to CLASS(fd)").
CVSS 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness type
CWE-401CVE-2024-14027 is a Memory Leak vulnerability
What is Memory Leak?
The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE
Affected versions
Linux kernel versions
6.6.51,
6.10.10,
6.11
and later are affected. Fixed in
6.6.133,
6.12.77,
6.13
and their respective stable series.
References
3 totalFrequently asked questions
-
What is CVE-2024-14027?
CVE-2024-14027 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Memory Leak flaw (CWE-401) . It affects Linux kernel versions from 6.6.51 onward and has been patched in 6.6.133, 6.12.77 and 6.13. CVE-2024-14027 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
What is the CVSS score for CVE-2024-14027?
CVE-2024-14027 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:N/I:N/A:H. -
Is there a patch available for CVE-2024-14027?
Yes. CVE-2024-14027 has been patched. Fixed versions include 6.6.133, 6.12.77 and 6.13. If you are running Linux kernel 6.6.51 or later up to the fix versions, apply the relevant patch for your kernel branch.
-
Is CVE-2024-14027 actively exploited?
No. CVE-2024-14027 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.