CVE-2023-53165

udf: Fix uninitialized array access for some pathnames

MEDIUM
5.5
CVSS Score
Published: September 15, 2025 at 02:03 PM UTC
Updated: June 17, 2026 at 06:44 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.15 ≤ v < 4.19.2934.20 ≤ v < 5.4.2554.6 ≤ v < 4.14.3244.6 ≤ v < 4.19.2934.6 ≤ v < 5.10.1924.6 ≤ v < 5.15.1234.6 ≤ v < 5.4.2554.6 ≤ v < 6.1.424.6 ≤ v < 6.4.74.6 ≤ v < 6.55.11 ≤ v < 5.15.1235.16 ≤ v < 6.1.425.5 ≤ v < 5.10.1926.2 ≤ v < 6.4.74.6484a10f49387e4386bf2708532e75bf78ffea2cb
Vendor states this is fixed in 008ae78d1e12efa904dc819b1ec83e2bca6b2c56 (fixed)
Vendor states this is fixed in 028f6055c912588e6f72722d89c30b401bbcf013 (fixed)
Vendor states this is fixed in 3f1368af47acf4d0b2a5fb0d2c0d6919d2234b6d (fixed)
Vendor states this is fixed in 4503f6fc95d6dee85fb2c54785848799e192c51c (fixed)
Vendor states this is fixed in 4d50988da0db167aed6f38685145cb5cd526c4f8 (fixed)
Vendor states this is fixed in 985f9666698960dfc87a106d6314203fa90fda75 (fixed)
Vendor states this is fixed in a6824149809395dfbb5bc36bc7057cc3cb84e56d (fixed)
Vendor states this is fixed in b37f998d357102e8eb0f8eeb33f03fff22e49cbf (fixed)
Vendor states this is fixed in 4.14.324 (unaffected)
Vendor states this is fixed in 4.19.293 (unaffected)
Vendor states this is fixed in 4.6 (unaffected)
Vendor states this is fixed in 5.10.192 (unaffected)
Vendor states this is fixed in 5.15.123 (unaffected)
Vendor states this is fixed in 5.4.255 (unaffected)
Vendor states this is fixed in 6.1.42 (unaffected)
Vendor states this is fixed in 6.4.7 (unaffected)
Vendor states this is fixed in 6.5 (unaffected)

References (8)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/008ae78d1e12efa904dc819b1ec83e2bca6b2c56
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/028f6055c912588e6f72722d89c30b401bbcf013
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3f1368af47acf4d0b2a5fb0d2c0d6919d2234b6d
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4503f6fc95d6dee85fb2c54785848799e192c51c
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4d50988da0db167aed6f38685145cb5cd526c4f8
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/985f9666698960dfc87a106d6314203fa90fda75
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a6824149809395dfbb5bc36bc7057cc3cb84e56d
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b37f998d357102e8eb0f8eeb33f03fff22e49cbf

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-908

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