CVE-2023-53165 Details
Description
In the Linux kernel, the following vulnerability has been resolved: udf: Fix uninitialized array access for some pathnames For filenames that begin with . and are between 2 and 5 characters long, UDF charset conversion code would read uninitialized memory in the output buffer. The only practical impact is that the name may be prepended a "unification hash" when it is not actually needed but still it is good to fix this.
A vulnerability in the Linux kernel's UDF (Universal Disk Format) handling has been addressed. The issue involved the UDF charset conversion code reading uninitialized memory from the output buffer for filenames that started with a dot and were between 2 to 5 characters long. This could inadvertently prepend a 'unification hash' to the filename when it was unnecessary. The vulnerability has been fixed by ensuring the code properly checks the length of the filename before processing it.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been fixed. Instructions for upgrading can be found in the official Linux kernel documentation.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/008ae78d1e12efa904dc819b1ec83e2bca6b2c56 | kernel.org | Patch |
| https://git.kernel.org/stable/c/028f6055c912588e6f72722d89c30b401bbcf013 | kernel.org | Patch |
| https://git.kernel.org/stable/c/3f1368af47acf4d0b2a5fb0d2c0d6919d2234b6d | kernel.org | Patch |
| https://git.kernel.org/stable/c/4503f6fc95d6dee85fb2c54785848799e192c51c | kernel.org | Patch |
| https://git.kernel.org/stable/c/4d50988da0db167aed6f38685145cb5cd526c4f8 | kernel.org | Patch |
| https://git.kernel.org/stable/c/985f9666698960dfc87a106d6314203fa90fda75 | kernel.org | Patch |
| https://git.kernel.org/stable/c/a6824149809395dfbb5bc36bc7057cc3cb84e56d | kernel.org | Patch |
| https://git.kernel.org/stable/c/b37f998d357102e8eb0f8eeb33f03fff22e49cbf | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-908 | Use of Uninitialized Resource | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 4.6, < 4.14.324 >= 4.15, < 4.19.293 >= 4.20, < 5.4.255 >= 5.5, < 5.10.192 >= 5.11, < 5.15.123 >= 5.16, < 6.1.42 >= 6.2, < 6.4.7 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Nov 24, 2025 | Initial Analysis | [email protected] |
| Sep 15, 2025 | New CVE Received | kernel.org |