CVE-2024-36923 - Vulnerability Details - OpenCVE

ReportizFlow

In the Linux kernel, the following vulnerability has been resolved: fs/9p: fix uninitialized values during inode evict If an iget fails due to not being able to retrieve information from the server then the inode structure is only partially initialized. When the inode gets evicted, references to uninitialized structures (like fscache cookies) were being made. This patch checks for a bad_inode before doing anything other than clearing the inode from the cache. Since the inode is bad, it shouldn't have any state associated with it that needs to be written back (and there really isn't a way to complete those anyways).

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

References

Link	Providers
https://git.kernel.org/stable/c/18cf7026355187b8d2b4cdfed61dbf873e9d29ff
https://git.kernel.org/stable/c/1b4cb6e91f19b81217ad98142ee53a1ab25893fd
https://git.kernel.org/stable/c/3a741b80b3457f079cf637e47800fb7bf8038ad6
https://git.kernel.org/stable/c/6630036b7c228f57c7893ee0403e92c2db2cd21d
https://lore.kernel.org/linux-cve-announce/2024053040-CVE-2024-36923-7fc8@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2024-36923
https://www.cve.org/CVERecord?id=CVE-2024-36923

History

Mon, 02 Dec 2024 08:15:00 +0000

Type	Values Removed	Values Added
References		https://git.kernel.org/stable/c/18cf7026355187b8d2b4cdfed61dbf873e9d29ff https://git.kernel.org/stable/c/3a741b80b3457f079cf637e47800fb7bf8038ad6

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-30T15:29:17.528Z

Updated: 2024-12-19T09:02:10.729Z

Reserved: 2024-05-30T15:25:07.069Z

Link: CVE-2024-36923

Vulnrichment

Updated: 2024-08-02T03:43:50.102Z

NVD

Status : Awaiting Analysis

Published: 2024-05-30T16:15:15.547

Modified: 2024-12-02T08:15:06.143

Link: CVE-2024-36923

Redhat

Severity : Moderate

Publid Date: 2024-05-30T00:00:00Z

Links: CVE-2024-36923 - Bugzilla

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{"bugzilla": {"description": "kernel: fs/9p: fix uninitialized values during inode evict", "id": "2284509", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2284509"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-908", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nfs/9p: fix uninitialized values during inode evict\nIf an iget fails due to not being able to retrieve information\nfrom the server then the inode structure is only partially\ninitialized. When the inode gets evicted, references to\nuninitialized structures (like fscache cookies) were being\nmade.\nThis patch checks for a bad_inode before doing anything other\nthan clearing the inode from the cache. Since the inode is\nbad, it shouldn't have any state associated with it that needs\nto be written back (and there really isn't a way to complete\nthose anyways)."], "name": "CVE-2024-36923", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-36923\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-36923\nhttps://lore.kernel.org/linux-cve-announce/2024053040-CVE-2024-36923-7fc8@gregkh/T"], "threat_severity": "Moderate", "upstream_fix": "kernel 6.8.10, kernel 6.9"}