CVE-2024-53147

Description

In the Linux kernel, the following vulnerability has been resolved: exfat: fix out-of-bounds access of directory entries In the case of the directory size is greater than or equal to the cluster size, if start_clu becomes an EOF cluster(an invalid cluster) due to file system corruption, then the directory entry where ei->hint_femp.eidx hint is outside the directory, resulting in an out-of-bounds access, which may cause further file system corruption. This commit adds a check for start_clu, if it is an invalid cluster, the file or directory will be treated as empty.

CVSS Metrics

• v3.1•HIGH•Score: 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

EPSS Trends

Current EPSS score: 0.03%• Percentile: 9%

Techniques & Countermeasures

• CWE-125•Out-of-bounds Read

  The product reads data past the end, or before the beginning, of the intended buffer.

Affected Systems

• linux•linux

  ≥ 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003, < a0120d6463368378539ef928cf067d02372efb8c | ≥ 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003, < 3ddd1cb2b458ff6a193bc845f408dfff217db29e | ≥ 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003, < 184fa506e392eb78364d9283c961217ff2c0617b | 5.7

• linux•linux_kernel

  ≥ 5.7, < 6.11.11 | ≥ 6.12, < 6.12.2

References (3)

• https://git.kernel.org/stable/c/a0120d6463368378539ef928cf067d02372efb8c
• https://git.kernel.org/stable/c/3ddd1cb2b458ff6a193bc845f408dfff217db29e
• https://git.kernel.org/stable/c/184fa506e392eb78364d9283c961217ff2c0617b