CVE-2023-44466

2023-09-2900:00:00

ubuntu.com

linux kernel

buffer overflow

remote code execution

tcp packet

integer signedness error

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.003 Low

EPSS

Percentile

69.2%

JSON

An issue was discovered in net/ceph/messenger_v2.c in the Linux kernel
before 6.4.5. There is an integer signedness error, leading to a buffer
overflow and remote code execution via HELLO or one of the AUTH frames.
This occurs because of an untrusted length taken from a TCP packet in
ceph_decode_32.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu22.04noarchlinux< 5.15.0-86.96UNKNOWN
ubuntu23.04noarchlinux< 6.2.0-36.37UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1047.52UNKNOWN
ubuntu23.04noarchlinux-aws< 6.2.0-1015.15UNKNOWN
ubuntu20.04noarchlinux-aws-5.15< 5.15.0-1047.52~20.04.1UNKNOWN
ubuntu22.04noarchlinux-aws-6.2< 6.2.0-1015.15~22.04.1UNKNOWN
ubuntu22.04noarchlinux-azure< 5.15.0-1049.56UNKNOWN
ubuntu23.04noarchlinux-azure< 6.2.0-1016.16UNKNOWN
ubuntu20.04noarchlinux-azure-5.15< 5.15.0-1049.56~20.04.1UNKNOWN
ubuntu22.04noarchlinux-azure-6.2< 6.2.0-1016.16~22.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	22.04	noarch	linux	< 5.15.0-86.96	UNKNOWN
ubuntu	23.04	noarch	linux	< 6.2.0-36.37	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1047.52	UNKNOWN
ubuntu	23.04	noarch	linux-aws	< 6.2.0-1015.15	UNKNOWN
ubuntu	20.04	noarch	linux-aws-5.15	< 5.15.0-1047.52~20.04.1	UNKNOWN
ubuntu	22.04	noarch	linux-aws-6.2	< 6.2.0-1015.15~22.04.1	UNKNOWN
ubuntu	22.04	noarch	linux-azure	< 5.15.0-1049.56	UNKNOWN
ubuntu	23.04	noarch	linux-azure	< 6.2.0-1016.16	UNKNOWN
ubuntu	20.04	noarch	linux-azure-5.15	< 5.15.0-1049.56~20.04.1	UNKNOWN
ubuntu	22.04	noarch	linux-azure-6.2	< 6.2.0-1016.16~22.04.1	UNKNOWN