CVE-2023-5345

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A use-after-free vulnerability in the Linux kernel's fs/smb/client component can be exploited to achieve local privilege escalation. In case of an error in smb3 fs context parse param, ctx->password was freed but the field was not set to NULL which could lead to double free.

Recommendations Upgrade past commit e6e43b8aa7cd3c3af686caf0c2e11819a886d705 to resolve the issue. As a temporary workaround, consider disabling the smb3 fs context parse param function until a patch is available. Restrict access to the vulnerable fs/smb/client component to minimize the risk of exploitation. Avoid using the ctx->password field in the affected component until the issue is resolved.