CVE-2023-52454

2024-02-2300:00:00

ubuntu.com

linux kernel

nvmet-tcp

vulnerability

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

5.3

Confidence

High

EPSS

Percentile

5.1%

JSON

In the Linux kernel, the following vulnerability has been resolved:
nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length If
the host sends an H2CData command with an invalid DATAL, the kernel may
crash in nvmet_tcp_build_pdu_iovec(). Unable to handle kernel NULL pointer
dereference at virtual address 0000000000000000 lr :
nvmet_tcp_io_work+0x6ac/0x718 [nvmet_tcp] Call trace:
process_one_work+0x174/0x3c8 worker_thread+0x2d0/0x3e8 kthread+0x104/0x110
Fix the bug by raising a fatal error if DATAL isn’t coherent with the
packet size. Also, the PDU length should never exceed the MAXH2CDATA
parameter which has been communicated to the host in
nvmet_tcp_handle_icreq().

Notes

Author	Note
rodrigo-zaiden	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 The mentioned notice was revoked and the state of the fix for linux-oem-6.5 was recovered to the previous state.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< 5.4.0-176.196UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-102.112UNKNOWN
ubuntu23.10noarchlinux< 6.5.0-41.41UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1122.132UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1057.63UNKNOWN
ubuntu23.10noarchlinux-aws< 6.5.0-1021.21UNKNOWN
ubuntu20.04noarchlinux-aws-5.15< 5.15.0-1057.63~20.04.1UNKNOWN
ubuntu18.04noarchlinux-aws-5.4< 5.4.0-1122.132~18.04.1UNKNOWN
ubuntu22.04noarchlinux-aws-6.5< anyUNKNOWN
ubuntu20.04noarchlinux-azure< 5.4.0-1127.134UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	linux	< 5.4.0-176.196	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-102.112	UNKNOWN
ubuntu	23.10	noarch	linux	< 6.5.0-41.41	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1122.132	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1057.63	UNKNOWN
ubuntu	23.10	noarch	linux-aws	< 6.5.0-1021.21	UNKNOWN
ubuntu	20.04	noarch	linux-aws-5.15	< 5.15.0-1057.63~20.04.1	UNKNOWN
ubuntu	18.04	noarch	linux-aws-5.4	< 5.4.0-1122.132~18.04.1	UNKNOWN
ubuntu	22.04	noarch	linux-aws-6.5	< any	UNKNOWN
ubuntu	20.04	noarch	linux-azure	< 5.4.0-1127.134	UNKNOWN