CVE-2024-26816
MediumIn the Linux kernel, the following vulnerability has been resolved: x86, relocs: Ignore relocations in .notes section When building with CONFIG_XEN_PV=y, .text symbols are emitted into the .notes section so that Xen can find the "startup_xen" entry point. This information is used prior to booting the kernel, so relocations are not useful. In fact, performing relocations against the .notes section means that the KASLR base is exposed since /sys/kernel/notes is world-readable. To avoid leaking the KASLR base without breaking unprivileged tools that are expecting to read /sys/kernel/notes, skip performing relocations in the .notes section. The values readable in .notes are then identical to those found in System.map.
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-2024-26816 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-2024-26816 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Mailing List
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Mailing List
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PatchKernel patch commithttps://git.kernel.org/stable/c/13edb509abc91c72152a11baaf0e7c060a312e03
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PatchKernel patch commithttps://git.kernel.org/stable/c/47635b112a64b7b208224962471e7e42f110e723
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PatchKernel patch commithttps://git.kernel.org/stable/c/52018aa146e3cf76569a9b1e6e49a2b7c8d4a088
Frequently asked questions
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What is CVE-2024-26816?
CVE-2024-26816 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2024-26816 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-2024-26816?
CVE-2024-26816 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-2024-26816?
No patch is currently available for CVE-2024-26816. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2024-26816 actively exploited?
No — CVE-2024-26816 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.