CVE-2023-53337
Vulnerability Scoring
Analysis In Progress
CVE-2023-53337 Vulnerability Analysis & Exploit Details
CVE-2023-53337
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-2023-53337 Details
Status: Awaiting Analysis
Last updated: 🕜 18 Sep 2025, 13:43 UTC
Originally published on: 🕒 17 Sep 2025, 15:15 UTC
CVSS Release:
CVE-2023-53337 Vulnerability Summary
CVE-2023-53337: In the Linux kernel, the following vulnerability has been resolved: nilfs2: do not write dirty data after degenerating to read-only According to syzbot's report, mark_buffer_dirty() called from nilfs_segctor_do_construct() outputs a warning with some patterns after nilfs2 detects metadata corruption and degrades to read-only mode. After such read-only degeneration, page cache data may be cleared through nilfs_clear_dirty_page() which may also clear the uptodate flag for their buffer heads. However, even after the degeneration, log writes are still performed by unmount processing etc., which causes mark_buffer_dirty() to be called for buffer heads without the "uptodate" flag and causes the warning. Since any writes should not be done to a read-only file system in the first place, this fixes the warning in mark_buffer_dirty() by letting nilfs_segctor_do_construct() abort early if in read-only mode. This also changes the retry check of nilfs_segctor_write_out() to avoid unnecessary log write retries if it detects -EROFS that nilfs_segctor_do_construct() returned.
Assessing the Risk of CVE-2023-53337
Access Complexity Graph
The exploitability of CVE-2023-53337 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-2023-53337
No exploitability data is available for CVE-2023-53337.
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-2023-53337, 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-2023-53337, 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-2023-53337 does not compromise confidentiality.
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Integrity:
None
CVE-2023-53337 does not impact data integrity.
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Availability:
None
CVE-2023-53337 does not affect system availability.
CVE-2023-53337 References
External References
- https://git.kernel.org/stable/c/13f73ef77baa4764dc1ca4fcbae9cade05b83866
- https://git.kernel.org/stable/c/28a65b49eb53e172d23567005465019658bfdb4d
- https://git.kernel.org/stable/c/4005cec6847c06ee191583270b7cdd7e696543cc
- https://git.kernel.org/stable/c/4569a292a84e340e97d178898ad1cfe1a3080a61
- https://git.kernel.org/stable/c/55f7810632f993cff622a0ddbc7c865892294b61
- https://git.kernel.org/stable/c/7c3e662048053802f6b0db3a78e97f4e1f7edc4f
- https://git.kernel.org/stable/c/a73201c607d8e506358d60aafddda4246bdd9350
- https://git.kernel.org/stable/c/bd89073fc7a5d03b1d06b372addbe405e5a925f4
- https://git.kernel.org/stable/c/e9c5412c5972124776c1b873533eb39e287a4dfa
CWE Common Weakness Enumeration
Unknown
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