CVE-2024-39469
Vulnerability Scoring
Analysis In Progress
CVE-2024-39469 Vulnerability Analysis & Exploit Details
CVE-2024-39469
Attack Complexity Details
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Attack Complexity:
Attack Complexity Analysis In Progress
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Attack Vector:
Attack Vector Under Analysis
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Privileges Required:
None
No authentication is required for exploitation.
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Scope:
Impact is confined to the initially vulnerable component.
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User Interaction:
None
No user interaction is necessary for exploitation.
CVE-2024-39469 Details
Status: Awaiting Analysis
Last updated: 🕗 05 Jul 2024, 08:15 UTC
Originally published on: 🕒 25 Jun 2024, 15:15 UTC
Time between publication and last update: 9 days
CVSS Release:
CVE-2024-39469 Vulnerability Summary
CVE-2024-39469: In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors The error handling in nilfs_empty_dir() when a directory folio/page read fails is incorrect, as in the old ext2 implementation, and if the folio/page cannot be read or nilfs_check_folio() fails, it will falsely determine the directory as empty and corrupt the file system. In addition, since nilfs_empty_dir() does not immediately return on a failed folio/page read, but continues to loop, this can cause a long loop with I/O if i_size of the directory's inode is also corrupted, causing the log writer thread to wait and hang, as reported by syzbot. Fix these issues by making nilfs_empty_dir() immediately return a false value (0) if it fails to get a directory folio/page.
Assessing the Risk of CVE-2024-39469
Access Complexity Graph
The exploitability of CVE-2024-39469 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).
Exploitability Analysis for CVE-2024-39469
No exploitability data is available for CVE-2024-39469.
Understanding AC and PR
A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.
Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.
Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.
CVSS Score Breakdown Chart
Above is the CVSS Sub-score Breakdown for CVE-2024-39469, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.
CIA Impact Analysis
Below is the Impact Analysis for CVE-2024-39469, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.
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Confidentiality:
None
CVE-2024-39469 does not compromise confidentiality.
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Integrity:
None
CVE-2024-39469 does not impact data integrity.
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Availability:
None
CVE-2024-39469 does not affect system availability.
Exploit Prediction Scoring System (EPSS)
The EPSS score estimates the probability that this vulnerability will be exploited in the near future.
EPSS Score: 0.044% (probability of exploit)
EPSS Percentile: 15.85%
(lower percentile = lower relative risk)
This vulnerability is less risky than approximately 84.15% of others.
CVE-2024-39469 References
External References
- https://git.kernel.org/stable/c/11a2edb70356a2202dcb7c9c189c8356ab4752cd
- https://git.kernel.org/stable/c/129dcd3e7d036218db3f59c82d82004b9539ed82
- https://git.kernel.org/stable/c/2ac8a2fe22bdde9eecce2a42cf5cab79333fb428
- https://git.kernel.org/stable/c/405b71f1251e5ae865f53bd27c45114e6c83bee3
- https://git.kernel.org/stable/c/59f14875a96ef93f05b82ad3c980605f2cb444b5
- https://git.kernel.org/stable/c/7373a51e7998b508af7136530f3a997b286ce81c
- https://git.kernel.org/stable/c/c77ad608df6c091fe64ecb91f41ef7cb465587f1
- https://git.kernel.org/stable/c/d18b05eda7fa77f02114f15b02c009f28ee42346
CWE Common Weakness Enumeration
Unknown
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