CVE-2023-45896
Highntfs3 in the Linux kernel through 6.8.0 allows a physically proximate attacker to read kernel memory by mounting a filesystem (e.g., if a Linux distribution is configured to allow unprivileged mounts of removable media) and then leveraging local access to trigger an out-of-bounds read. A length value can be larger than the amount of memory allocated. NOTE: the supplier's perspective is that there is no vulnerability when an attack requires an attacker-modified filesystem image.
CVSS 3.1 score
7.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Weakness type
CWE-276CVE-2023-45896 is classified as CWE-276
See CWE-276 on MITRE CWE for full details on this weakness type.
References
The following references provide additional information about CVE-2023-45896 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/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=013ff63b649475f0ee134e2c8d0c8e65284ede50
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PatchKernel patch commithttps://github.com/torvalds/linux/commit/013ff63b649475f0ee134e2c8d0c8e65284ede50
Frequently asked questions
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What is CVE-2023-45896?
CVE-2023-45896 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 . CVE-2023-45896 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-2023-45896?
CVE-2023-45896 has a CVSS score of 7.1 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H. -
Is there a patch available for CVE-2023-45896?
No patch is currently available for CVE-2023-45896. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2023-45896 actively exploited?
No — CVE-2023-45896 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.