Riskcovery

CVE-2024-53147

exfat: fix out-of-bounds access of directory entries

State
Published
Severity
7.8 High
Published
Dec 24, 2024
Updated
Oct 30, 2026
Reserved
Nov 19, 2024

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
3.17.1 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:HCISA-ADP

Weaknesses

Affected Products

ProductVersions
LinuxLinux
  • 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 to before 98e3572505a9ec550b5296c67c4517120356c8d6Affected
  • 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 to before 82dc96f0f4eec8afdde8467d21d1b6b989dbb20aAffected
  • 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 to before a0120d6463368378539ef928cf067d02372efb8cAffected
  • 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 to before 3ddd1cb2b458ff6a193bc845f408dfff217db29eAffected
  • 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 to before 184fa506e392eb78364d9283c961217ff2c0617bAffected
LinuxLinux
  • 5.7Affected
  • before 5.7Not affected
  • 6.1.191 through 6.1.*Not affected
  • 6.6.160 through 6.6.*Not affected
  • 6.11.11 through 6.11.*Not affected
  • 6.12.2 through 6.12.*Not affected
  • 6.13 and laterNot affected

References

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