CVE-2024-49996

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix buffer overflow when parsing NFS reparse points ReparseDataLength is sum of the InodeType size and DataBuffer size. So to get DataBuffer size it is needed to subtract InodeType's size from ReparseDataLength. Function cifs_strndup_from_utf16() is currentlly accessing buf->DataBuffer at position after the end of the buffer because it does not subtract InodeType size from the length. Fix this problem and correctly subtract variable len. Member InodeType is present only when reparse buffer is large enough. Check for R...

Affected product and versions

Product

Linux Linux, debian linux, linux kernel

Affected versions

>= d5ecebc4900df7f6e8dff0717574668885110553 < 7b222d6cb87077faf56a687a72af1951cf78c8a9, >= d5ecebc4900df7f6e8dff0717574668885110553 < 73b078e3314d4854fd8286f3ba65c860ddd3a3dd, >= d5ecebc4900df7f6e8dff0717574668885110553 < 01cdddde39b065074fd48f07027757783cbf5b7d, >= d5ecebc4900df7f6e8dff0717574668885110553 < ec79e6170bcae8a6036a4b6960f5e7e59a785601, >= d5ecebc4900df7f6e8dff0717574668885110553 < c6db81c550cea0c73bd72ef55f579991e0e4ba07, >= d5ecebc4900df7f6e8dff0717574668885110553 < 803b3a39cb096d8718c0aebc03fd19f11c7dc919, >= d5ecebc4900df7f6e8dff0717574668885110553 < c173d47b69f07cd7ca08efb4e458adbd4725d8e9, >= d5ecebc4900df7f6e8dff0717574668885110553 < e2a8910af01653c1c268984855629d71fb81f404, >= 5.3, 11.0, >= 5.3 < 5.4.287, >= 5.5 < 5.10.231, >= 5.11 < 5.15.174, >= 5.16 < 6.1.120, >= 6.2 < 6.6.55, >= 6.7 < 6.10.14, >= 6.11 < 6.11.3

Fixed versions

5.4.287, 5.10.231, 5.15.174, 6.1.120, 6.6.55, 6.10.14, 6.11.3

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-120