CVE-2023-6356

2024-02-0700:00:00

ubuntu.com

linux

nvme driver

tcp

null pointer dereference

denial of service

bugzilla

red hat

suse

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.3

Confidence

High

EPSS

0.001

Percentile

50.6%

JSON

A flaw was found in the Linux kernel’s NVMe driver. This issue may allow an
unauthenticated malicious actor to send a set of crafted TCP packages when
using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference
in the NVMe driver and causing kernel panic and a denial of service.

Bugs

Notes

Author	Note
rodrigo-zaiden	fixes for CVE-2023-6536, CVE-2023-6535, and CVE-2023-6356 are all the same. the differences between the CVEs are that they were reported against different methods. NULL pointer dereference in nvmet_tcp_build_iovec USN-6765-1 for linux-oem-6.5 wrongly stated that this CVE was fixed in version 6.5.0-1022.23. The mentioned notice was revoked and the state of the fix for linux-oem-6.5 was recovered to the previous state.

Author

Note

rodrigo-zaiden

fixes for CVE-2023-6536, CVE-2023-6535, and CVE-2023-6356 are all the same. the differences between the CVEs are that they were reported against different methods. NULL pointer dereference in nvmet_tcp_build_iovec USN-6765-1 for linux-oem-6.5 wrongly stated that this CVE was fixed in version 6.5.0-1022.23. The mentioned notice was revoked and the state of the fix for linux-oem-6.5 was recovered to the previous state.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchlinux< anyUNKNOWN
ubuntu22.04noarchlinux< anyUNKNOWN
ubuntu23.10noarchlinux< 6.5.0-41.41UNKNOWN
ubuntu20.04noarchlinux-aws< anyUNKNOWN
ubuntu22.04noarchlinux-aws< anyUNKNOWN
ubuntu23.10noarchlinux-aws< 6.5.0-1021.21UNKNOWN
ubuntu20.04noarchlinux-aws-5.15< anyUNKNOWN
ubuntu18.04noarchlinux-aws-5.4< anyUNKNOWN
ubuntu22.04noarchlinux-aws-6.5< anyUNKNOWN
ubuntu20.04noarchlinux-azure< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	linux	< any	UNKNOWN
ubuntu	22.04	noarch	linux	< any	UNKNOWN
ubuntu	23.10	noarch	linux	< 6.5.0-41.41	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	23.10	noarch	linux-aws	< 6.5.0-1021.21	UNKNOWN
ubuntu	20.04	noarch	linux-aws-5.15	< any	UNKNOWN
ubuntu	18.04	noarch	linux-aws-5.4	< any	UNKNOWN
ubuntu	22.04	noarch	linux-aws-6.5	< any	UNKNOWN
ubuntu	20.04	noarch	linux-azure	< any	UNKNOWN