CVE-2021-47360
MediumIn the Linux kernel, the following vulnerability has been resolved: binder: make sure fd closes complete During BC_FREE_BUFFER processing, the BINDER_TYPE_FDA object cleanup may close 1 or more fds. The close operations are completed using the task work mechanism -- which means the thread needs to return to userspace or the file object may never be dereferenced -- which can lead to hung processes. Force the binder thread back to userspace if an fd is closed during BC_FREE_BUFFER handling.
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-252CVE-2021-47360 is classified as CWE-252
See CWE-252 on MITRE CWE for full details on this weakness type.
References
The following references provide additional information about CVE-2021-47360 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/5fdb55c1ac9585eb23bb2541d5819224429e103d
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PatchKernel patch commithttps://git.kernel.org/stable/c/aa2c274c279ff365a06a4cba263f04965895166e
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PatchKernel patch commithttps://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621
Frequently asked questions
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What is CVE-2021-47360?
CVE-2021-47360 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2021-47360 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-2021-47360?
CVE-2021-47360 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-2021-47360?
No patch is currently available for CVE-2021-47360. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2021-47360 actively exploited?
No — CVE-2021-47360 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.