CVE-2022-48967 Information

Description

In the Linux kernel the following vulnerability has been resolved:

NFC: nci: Bounds check struct nfc_target arrays

While running under CONFIG_FORTIFY_SOURCE=y syzkaller reported:

memcpy: detected field-spanning write (size 129) of single field arget->sensf_res\ at net/nfc/nci/ntf.c:260 (size 18)

This appears to be a legitimate lack of bounds checking in nci_add_new_protocol(). Add the missing checks.

CVSS Vector

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

Reference

https://git.kernel.org/stable/c/6b37f0dc0638d13a006f2f24d2f6ca61e83bc714 https://git.kernel.org/stable/c/dbdcfb9f6748218a149f62468d6297ce3f014e9c https://git.kernel.org/stable/c/cff35329070b96b4484d23f9f48a5ca2c947e750 https://git.kernel.org/stable/c/6778434706940b8fad7ef35f410d2b9929f256d2 https://git.kernel.org/stable/c/27eb2d7a1b9987b6d0429b7716b1ff3b82c4ffc9 https://git.kernel.org/stable/c/908b2da426fe9c3ce74cf541ba40e7a4251db191 https://git.kernel.org/stable/c/f41547546db9af99da2c34e3368664d7a79cefae https://git.kernel.org/stable/c/e329e71013c9b5a4535b099208493c7826ee4a64

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.1