CVE-2024-39472
MediumIn the Linux kernel, the following vulnerability has been resolved: xfs: fix log recovery buffer allocation for the legacy h_size fixup Commit a70f9fe52daa ("xfs: detect and handle invalid iclog size set by mkfs") added a fixup for incorrect h_size values used for the initial umount record in old xfsprogs versions. Later commit 0c771b99d6c9 ("xfs: clean up calculation of LR header blocks") cleaned up the log reover buffer calculation, but stoped using the fixed up h_size value to size the log recovery buffer, which can lead to an out of bounds access when the incorrect h_size does not come from the old mkfs tool, but a fuzzer. Fix this by open coding xlog_logrec_hblks and taking the fixed h_size into account for this calculation.
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-2024-39472 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-2024-39472 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/45cf976008ddef4a9c9a30310c9b4fb2a9a6602a
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PatchKernel patch commithttps://git.kernel.org/stable/c/57835c0e7152e36b03875dd6c56dfeed685c1b1f
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PatchKernel patch commithttps://git.kernel.org/stable/c/c2389c074973aa94e34992e7f66dac0de37595b5
Frequently asked questions
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What is CVE-2024-39472?
CVE-2024-39472 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2024-39472 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-2024-39472?
CVE-2024-39472 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-2024-39472?
No patch is currently available for CVE-2024-39472. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2024-39472 actively exploited?
No — CVE-2024-39472 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.