CVE-2023-52810
HighIn the Linux kernel, the following vulnerability has been resolved: fs/jfs: Add check for negative db_l2nbperpage l2nbperpage is log2(number of blks per page), and the minimum legal value should be 0, not negative. In the case of l2nbperpage being negative, an error will occur when subsequently used as shift exponent. Syzbot reported this bug: UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:799:12 shift exponent -16777216 is negative
CVSS 3.1 score
8.4
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type
CWE-1335CVE-2023-52810 is classified as CWE-1335
See CWE-1335 on MITRE CWE for full details on this weakness type.
References
The following references provide additional information about CVE-2023-52810 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/0cb567e727339a192f9fd0db00781d73a91d15a6
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PatchKernel patch commithttps://git.kernel.org/stable/c/1a7c53fdea1d189087544d9a606d249e93c4934b
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PatchKernel patch commithttps://git.kernel.org/stable/c/491085258185ffc4fb91555b0dba895fe7656a45
Frequently asked questions
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What is CVE-2023-52810?
CVE-2023-52810 is a High severity Linux kernel vulnerability with a CVSS score of 8.4 out of 10 . CVE-2023-52810 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-2023-52810?
CVE-2023-52810 has a CVSS score of 8.4 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2023-52810?
No patch is currently available for CVE-2023-52810. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2023-52810 actively exploited?
No — CVE-2023-52810 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.