CVE-2023-32247

Description

A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_SESSION_SETUP commands. The issue results from the lack of control of resource consumption. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

CVSS Metrics

• v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.09%• Percentile: 25%

Techniques & Countermeasures

• CWE-401•Missing Release of Memory after Effective Lifetime

  The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

Affected Systems

• linux•linux_kernel

  ≥ 5.15, < 5.15.145 | ≥ 5.16, < 6.1.29 | ≥ 6.2, < 6.2.16 | ≥ 6.3, < 6.3.2

• netapp•h300s_firmware

  na

• netapp•h410s_firmware

  na

• netapp•h500s_firmware

  na

• netapp•h700s_firmware

  na

References (4)

• https://access.redhat.com/security/cve/CVE-2023-32247
• https://bugzilla.redhat.com/show_bug.cgi?id=2219803
• https://security.netapp.com/advisory/ntap-20230915-0011/
• https://www.zerodayinitiative.com/advisories/ZDI-CAN-20478/