7.8
CWE
416
Advisory Published
Updated

CVE-2024-50283: ksmbd: fix slab-use-after-free in smb3_preauth_hash_rsp

First published: Tue Nov 19 2024(Updated: )

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab-use-after-free in smb3_preauth_hash_rsp ksmbd_user_session_put should be called under smb3_preauth_hash_rsp(). It will avoid freeing session before calling smb3_preauth_hash_rsp().

Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Affected SoftwareAffected VersionHow to fix
Linux Kernel<6.1.117
Linux Kernel>=6.2<6.6.61
Linux Kernel>=6.7<6.11.8
Linux Kernel=6.12-rc1
Linux Kernel=6.12-rc2
Linux Kernel=6.12-rc3
Linux Kernel=6.12-rc4
Linux Kernel=6.12-rc5
Linux Kernel=6.12-rc6
debian/linux
5.10.223-1
5.10.234-1
6.1.129-1
6.1.128-1
6.12.20-1
6.12.21-1
debian/linux-6.1
6.1.129-1~deb11u1

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Frequently Asked Questions

  • What is the severity of CVE-2024-50283?

    CVE-2024-50283 is considered to be of medium severity due to the potential for use-after-free vulnerabilities in the Linux kernel's ksmbd.

  • How do I fix CVE-2024-50283?

    To fix CVE-2024-50283, update to a fixed version of the Linux kernel that addresses the issue, such as versions after the vulnerability was patched.

  • Which versions of the Linux kernel are affected by CVE-2024-50283?

    CVE-2024-50283 affects multiple versions of the Linux kernel including those between 6.2 and 6.1.117, 6.7 and 6.11.8, as well as specific release candidates.

  • What component of the Linux kernel is impacted by CVE-2024-50283?

    CVE-2024-50283 impacts the ksmbd component of the Linux kernel, specifically in the handling of smb3_preauth_hash_rsp.

  • What are the implications of not addressing CVE-2024-50283?

    Failure to address CVE-2024-50283 could lead to security risks, potentially allowing attackers to exploit memory corruption vulnerabilities.

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