CVE-2023-53271
Vulnerability Scoring
Analysis In Progress
CVE-2023-53271 Vulnerability Analysis & Exploit Details
CVE-2023-53271
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-2023-53271 Details
Status: Awaiting Analysis
Published on: 16 Sep 2025, 08:15 UTC
CVSS Release:
CVE-2023-53271 Vulnerability Summary
CVE-2023-53271: In the Linux kernel, the following vulnerability has been resolved: ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume() There is a memory leaks problem reported by kmemleak: unreferenced object 0xffff888102007a00 (size 128): comm "ubirsvol", pid 32090, jiffies 4298464136 (age 2361.231s) hex dump (first 32 bytes): ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ backtrace: [<ffffffff8176cecd>] __kmalloc+0x4d/0x150 [<ffffffffa02a9a36>] ubi_eba_create_table+0x76/0x170 [ubi] [<ffffffffa029764e>] ubi_resize_volume+0x1be/0xbc0 [ubi] [<ffffffffa02a3321>] ubi_cdev_ioctl+0x701/0x1850 [ubi] [<ffffffff81975d2d>] __x64_sys_ioctl+0x11d/0x170 [<ffffffff83c142a5>] do_syscall_64+0x35/0x80 [<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0 This is due to a mismatch between create and destroy interfaces, and in detail that "new_eba_tbl" created by ubi_eba_create_table() but destroyed by kfree(), while will causing "new_eba_tbl->entries" not freed. Fix it by replacing kfree(new_eba_tbl) with ubi_eba_destroy_table(new_eba_tbl)
Assessing the Risk of CVE-2023-53271
Access Complexity Graph
The exploitability of CVE-2023-53271 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-2023-53271
No exploitability data is available for CVE-2023-53271.
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-2023-53271, 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-2023-53271, 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-2023-53271 does not compromise confidentiality.
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Integrity:
None
CVE-2023-53271 does not impact data integrity.
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Availability:
None
CVE-2023-53271 does not affect system availability.
CVE-2023-53271 References
External References
- https://git.kernel.org/stable/c/07b60f7452d2fa731737552937cb81821919f874
- https://git.kernel.org/stable/c/09780a44093b53f9cbca76246af2e4ff0884e512
- https://git.kernel.org/stable/c/1e591ea072df7211f64542a09482b5f81cb3ad27
- https://git.kernel.org/stable/c/26ec2d66aecab8ff997b912c20247fedba4f5740
- https://git.kernel.org/stable/c/27b760b81951d8d5e5c952a696af8574052b0709
- https://git.kernel.org/stable/c/31d60afe2cc2b712dbefcaab6b7d6a47036f844e
- https://git.kernel.org/stable/c/5c0c81a313492b83bd0c038b8839b0e04eb87563
- https://git.kernel.org/stable/c/95a72417dd13ebcdcb1bd0c5d4d15f7c5bfbb288
CWE Common Weakness Enumeration
Unknown
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