CVE-2023-52522
MediumIn the Linux kernel, the following vulnerability has been resolved: net: fix possible store tearing in neigh_periodic_work() While looking at a related syzbot report involving neigh_periodic_work(), I found that I forgot to add an annotation when deleting an RCU protected item from a list. Readers use rcu_deference(*np), we need to use either rcu_assign_pointer() or WRITE_ONCE() on writer side to prevent store tearing. I use rcu_assign_pointer() to have lockdep support, this was the choice made in neigh_flush_dev().
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
References
The following references provide additional information about CVE-2023-52522 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/147d89ee41434b97043c2dcb17a97dc151859baa
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PatchKernel patch commithttps://git.kernel.org/stable/c/25563b581ba3a1f263a00e8c9a97f5e7363be6fd
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PatchKernel patch commithttps://git.kernel.org/stable/c/2ea52a2fb8e87067e26bbab4efb8872639240eb0
Frequently asked questions
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What is CVE-2023-52522?
CVE-2023-52522 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2023-52522 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-2023-52522?
CVE-2023-52522 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-2023-52522?
No patch is currently available for CVE-2023-52522. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2023-52522 actively exploited?
No — CVE-2023-52522 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.