CVE-2022-49762

Advisory lineage Upstream: 0 Downstream: 4
Analyzed
Published: 01 May 2025, 14:09
Last modified:11 May 2026, 19:06

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.04% LOW
0% probability +0.02%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

01 May 2025, 14:09
Published
Vulnerability first disclosed
11 May 2026, 19:06
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: ntfs: check overflow when iterating ATTR_RECORDs Kernel iterates over ATTR_RECORDs in mft record in ntfs_attr_find(). Because the ATTR_RECORDs are next to each other, kernel can get the next ATTR_RECORD from end address of current ATTR_RECORD, through current ATTR_RECORD length field. The problem is that during iteration, when kernel calculates the end address of current ATTR_RECORD, kernel may trigger an integer overflow bug in executing `a = (ATTR_RECORD*)((u8*)a + le32_to_cpu(a->length))`. This may wrap, leading to a forever iteration on 32bit systems. This patch solves it by adding some checks on calculating end address of current ATTR_RECORD during iteration.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.04%• Percentile: 12%

Affected Systems

  • linux•linux

    ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 5559eb5809353a83a40a1e4e7f066431c7b83020 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 86f36de14dce5802856bb7a5921d74439db00b64 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 45683723f6b53e39e8a4cec0894e61fd6ec71989 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < b612f924f296408d7d02fb4cd01218afd4ed7184 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 957732a09c3828267c2819d31c425aa793dd475b | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < b63ddb3ba61e2d3539f87e095c881e552bc45dab | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 785b2af9654b8beac55644e36da0085c5d776361 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 63095f4f3af59322bea984a6ae44337439348fe0 | 2.6.12

  • linux•linux_kernel

    < 4.9.334 | ≥ 4.10, < 4.14.300 | ≥ 4.15, < 4.19.267 | ≥ 4.20, < 5.4.225 | ≥ 5.5, < 5.10.156 | ≥ 5.11, < 5.15.80 | ≥ 5.16, < 6.0.10

References (8)