CVE-2024-39482
MediumIn the Linux kernel, the following vulnerability has been resolved: bcache: fix variable length array abuse in btree_iter btree_iter is used in two ways: either allocated on the stack with a fixed size MAX_BSETS, or from a mempool with a dynamic size based on the specific cache set. Previously, the struct had a fixed-length array of size MAX_BSETS which was indexed out-of-bounds for the dynamically-sized iterators, which causes UBSAN to complain. This patch uses the same approach as in bcachefs's sort_iter and splits the iterator into a btree_iter with a flexible array member and a btree_iter_stack which embeds a btree_iter as well as a fixed-length data array.
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-770CVE-2024-39482 is classified as CWE-770
See CWE-770 on MITRE CWE for full details on this weakness type.
References
The following references provide additional information about CVE-2024-39482 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/0c31344e22dd8d6b1394c6e4c41d639015bdc671
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PatchKernel patch commithttps://git.kernel.org/stable/c/2c3d7b03b658dc8bfa6112b194b67b92a87e081b
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PatchKernel patch commithttps://git.kernel.org/stable/c/3a861560ccb35f2a4f0a4b8207fa7c2a35fc7f31
Frequently asked questions
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What is CVE-2024-39482?
CVE-2024-39482 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2024-39482 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-2024-39482?
CVE-2024-39482 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-2024-39482?
No patch is currently available for CVE-2024-39482. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2024-39482 actively exploited?
No — CVE-2024-39482 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.