CVE-2023-2898

Description

There is a null-pointer-dereference flaw found in f2fs_write_end_io in fs/f2fs/data.c in the Linux kernel. This flaw allows a local privileged user to cause a denial of service problem.

CVSS Metrics

• v3.1•MEDIUM•Score: 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.02%• Percentile: 6%

Techniques & Countermeasures

• CWE-362•Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

  The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

• CWE-476•NULL Pointer Dereference

  The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

• debian•debian_linux

  10.0 | 11.0 | 12.0

• linux•linux_kernel

  na

• netapp•h300s_firmware

  na

• netapp•h410c_firmware

  na

• netapp•h410s_firmware

  na

• netapp•h500s_firmware

  na

• netapp•h700s_firmware

  na

References (5)

• https://lore.kernel.org/linux-f2fs-devel/20230522124203.3838360-1-chao%40kernel.org/
• https://www.debian.org/security/2023/dsa-5480
• https://www.debian.org/security/2023/dsa-5492
• https://security.netapp.com/advisory/ntap-20230929-0002/
• https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html