CVE-2024-49996

216.73.216.86

· Published 21/10/2024 18:15 · Modified 25/10/2024 19:56

Labels: CVE-2024-49996 2024-10-21 416baaa9-dc9f-4396-8d5f-8c081fb06d67 CVE-2024-49996 CWE-120

Essential information

Published: 21/10/2024 18:15
Modified: 25/10/2024 19:56
Author: —
Creator: —
CVSS: 7.8 HIGH (v3.1)
CISA KEV: No
CWE: —
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS metrics

Description

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 ReparseDataLength before accessing InodeType to prevent another invalid memory access. Major and minor rdev values are present also only when reparse buffer is large enough. Check for reparse buffer size before calling reparse_mkdev().

NVD status

Status: Analyzed — CVE has been recently published to the CVE List and has been received by the NVD.
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD: View on NVD

Affected products (CPE)

Product	CPE
linux / linux kernel	`cpe:2.3:o:linux:linux_kernel::::::::`
linux / linux kernel	`cpe:2.3:o:linux:linux_kernel::::::::`
linux / linux kernel	`cpe:2.3:o:linux:linux_kernel::::::::`