CVE-2024-53147 – Exfat Linux Out-of-Bounds Directory Entry Access Vulnerability

CVE ID : CVE-2024-53147

Published : Dec. 24, 2024, 12:15 p.m. | 15 hours, 53 minutes ago

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.

Severity: 0.0 | NA

Visit the link for more details, such as CVSS details, affected products, timeline, and more…CVE ID : CVE-2024-53147

Published : Dec. 24, 2024, 12:15 p.m. | 15 hours, 53 minutes ago

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.

Severity: 0.0 | NA

Visit the link for more details, such as CVSS details, affected products, timeline, and more…