CVE-2023-53662
MEDIUM severity · CVSS 5.5 · CWE-401
5.5CVSS MEDIUM
Summary
In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leaks in ext4_fname_{setup_filename,prepare_lookup} If the filename casefolding fails, we'll be leaking memory from the fscrypt_name struct, namely from the 'crypto_buf.name' member. Make sure we free it in the error path on both ext4_fname_setup_filename() and ext4_fname_prepare_lookup() functions.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/1fb3f1bbfdb511034b0360dbeb0f6a8424ed2a5c ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/1fb3f1bbfdb511034b0360dbeb0f6a8424ed2a5cPatch
- https://git.kernel.org/stable/c/36daf050be3f6f067631dc52054de2d3b7cc849fPatch
- https://git.kernel.org/stable/c/7ca4b085f430f3774c3838b3da569ceccd6a0177Patch
- https://git.kernel.org/stable/c/98fc9c2cc45cfcb56961a73de3ec69b474063fc0